I was terrified of using the toilet or taking a shower for the longest time because of the Goosebumps episode with the talking dummy. The reason: towards the end of teh show, the dummy was in the bathroom air duct and released some sort of green gas that made the person in there turn into a dummy.
Like many others with bathroom fears, I would perform many flush-and-runs until the age of 11, along with record breaking showers.

Still slightly afraid

when i was little, ever since i saw the movie HOOK,
i thought that when I'd sit on the toilet, Captain Hook would poke me in the butt with his hook then drag me down there with him.

Dana

i used to believe that a huge monster came out of the loo and ate you if you stayed when it was flushing. i thought you were safe in the living room!

Charli

I used to think a giant kraken would come out of my toilet when I flushed and would drag me into the sewer so I ran out all the time.

Olivia

I went to the circus once and I had to use the restroom, I was 9 years old at the time. The toilet was constantly flushing and I thought I would drop everything important into the toilet and it would be lost forever. I would have nightmares of dropping a picture of my Auntie in the toilet and it would be gone, or a fear of thinking I was going to throw it in the toilet against my will.

Lokke

My sister and dad were talking about a movie where aliens come out of the toilet, so for like three years i would go to the bathroom really quick then I would flush the toilet then run down the hall to where I was safe

Anon

when i was young i used to be scared to death of my toilet.because i thaght one of the teenage mutan ninja turtles would grab my butt and pull me into the sueage! i was such a retard cause in the 2nd grade i found out they werent real

Anon

When I was little we had fish and when they died we would fluch them down the toilet. Evey time I went to the bath room I was scared that the fish were going to bite my butt, so I would go and then hurry up and jump off.

Andrea

I used to believe that when I flushed the toilet, a monster would come out, so I washed my hands before I flushed, and right after I flushed, I ran out of the bathroom.

Anon

When I was little, I used to believe there was a monster down in the pipes that woke up when the toilet was flushed. I'd wash my hands first before going for the flush, then run as fast as I could for my room and LEAP onto my bed in case it had followed me- it couldn't be a very big monster, you see. I'd always wait until the sound of the toilet tank refilling finished, and scanned the floor suspiciously before getting back down.

Emi

When I was little, I thought that when you flushed, snakes would come out fo the toilet and try to grab you. I would brace myself, flush and run away to wash my hands in the kitchen.

runaway

When I was little I used to believe that after I had been to the toilet, I had to get downstairs quickly before the flush stopped or the toilet monster would get me

Schmee

I used to think whenever you flushed the toilet the toilet monster would chase me!!! And I would run every time I flushed. But when I was eight I realized there wasn't a toilet monster!!!

Rachael

up until i was about 10 i was afraid to flush the toilet
i was CONVINCED there was a monster that would pop out the second i flushed it and grab me and pull me back in with him
that roaring noise you hear when the water is sucked down..that's him growling on his way to come and get you
so i used to wash my hands BEFORE flushing the toilet.
flush it and run like hell to my room before he could get me

yourschatzi

When I was about 7 my babysitter told me that if I flushed the toilet at midnight on a full moon, the mustard monster would come out and drag me into the toilet...I believed her until I was probably 10, when I got the chance to flush at midnight on the full moon.

Gina

I once had a toilet that ALWAYS flooded, so my family got a new one. I always thought it'd still flood, so I'd NEVER flush.

Mr. Potty

I used to think that a "Freddy" hand would come out of the toilet and kill me. It made going to the restroom a tedious task of getting just close enough but not to close.

Darin