Oh, Sweet Luna's Crown, WHERE do I begin...
*sigh* Okay, here goes... just, uhm... t-t-try not to think of me TOO differently after this... but as a kid, I would:
chew my toenails, then chew up the nail & swallow it
grind unpopped popcorn kernels between my teeth
flip a full-sized wooden stool over my head with my feet like a circus performer while I watched TV
eat an ENTIRE gallon jar of blue cheese dressing with crackers at one sitting. Repeatedly.
hummed to match the pitch of the AC unit's drone
nibbled on aloe leaves from the plant in my backyard (NOT recommended)
hid & ate the whole contents of an entirely brand new tub of paste during the course of a school year (minty!)
painted my fingernails and toenails with White Out
disassembled & reassembled my G.I. Joes in different ways (then gave them new code names)
(sorta) straightened my Slinky (because Egon did it)
peed in my neighbors' bushes, because I thought I could mark territory like a wolf
pick my nose and try to intentionally wipe it on someone else's desk/chair/backpack because it was a chance to practice ninja stealth techniques
play my father's oldies records backwards with my speaker in the window, sharing with the neighborhood
touched every fifth pole I would pass in any given parking lot or storefront
beatbox. In public. For no reason other than boredom.
lick my upper lip, then sniff it
hide a box of the darkest dirt I'd ever dug up in my closet because I thought it would be worth more money than light dirt
kept scaring our neighbor by moving his beagle from his backyard to his RV... (that poor guy thought it was the dog somehow doing it by himself)
memorized commercial jingles and tried to actively seek out/create situations I could use them in
tape recorded my relatives doing their own 'commercials' over the phone on my mixtapes
made mixtapes where song lyrics were strung together to make compilation sentences and funny segues
taught myself how to play "The Time Warp" on my keyboard... then learned to play it using all 200 beat styles
gave my hands and arms hickeys, due to idly sucking on my arm while I watched TV
wrapped ice cubes in my shirt, then chewed them up (which RUINS shirts, by the way)
kept my fortune cookie fortunes in my sock drawer, then burned the old fortune whenever I got a new one
believe cigarettes were made of shredded leather
make little stand-ups of paper people in class, then play with them under my desk and eat them when class ended (destroy the evidence!)
carry around an old-timey doctor's bag to hold my textbooks in for school (got a LOT of teasing over that one... but it was ROOMY in there!)
would slip under the bleachers during P.E. to feed ants to the spiders living there
mixed tea, orange juice and milk together and drank the HELL out of it
had a collection of "nifty junk" that I'd found on countless roadsides
had an ENORMOUS keyring, filled with every key I'd ever found that wasn't mine
hid in the round clothing racks at the local K-Mart, then jumped out & scared unsuspecting customers (they banned me after the third incident)
used the pulltabs of soda cans as 'grenade pins', and tried to convince others I had a live grenade in my pocket
swallowed a moth in school for money... a LIVE moth.
pulled the used gum from under my desk and made a golf ball-sized ABC Gumball - which I threw out of a bus window and cracked an oncoming car's windshield with
carried a piece of quartz around with me because I thought it was a moon rock (which, of course, it wasn't)
ate dog biscuits for the SOLE purpose of freaking other people out
... aaaaaaaand that's just a SAMPLE; the full list might be a whole page unto itself - I'll spare you anything further, fellow Ponyites.