when I was little I thought that the army base open-house that happened each year was Smokey the Bear's birthday party (he promotes fire safety in commercials), there would be kids games and sometimes cake. I thought he just really liked tanks and so went for an army theme, and being a celebrity he could afford to go all out. It was such a big place that I didn't find it that strange if I could go for the whole event and not see him.
I didn't realize the truth until I was in my late teens reminiscing with my parents about how I used to love going to Smokey's birthday... they were a little confused.
A childhood belief about birthdays

others believed things like this
- I used to believe that on your birthday, you didn't advance to your next age until you ate your birthday cake.— Casi
- My parents have the same birthday -- month, day, and year. I though all mom's and dad's had the same birthday.— Cait
- German tiger tanks shot out tigers, the invading army would get mauled to death by all the tigers— Bob
- I used to believe that the salvation army was an actual army.Anon
- i used to think that if i didn't celebrate my birthday each year my younger sister would catch up with me— q
- I used to believe that all dessert was birthday cake.— David