Scrvoy - you were not to blame for the .22 revolver thing with your brother.
SIXTO - speaking of stuffing things down the barrel of a BB gun, my brothers and I tried the improvised shotgun technique with my Powerling 990. What you do is put a few BBs in the barrel - you have to load them from the muzzle - then pump it up about 20 times and shoot something neat.
I get a little ambitious and filled the barrel completely full of BBs. I knew it would take a lot of extra pumps to do the job so I pumped it up about 50 times. When I squeezed (ok, pulled) the trigger, the whole barrel liner with all the BBs and the front sight still attached flew out about 3 feet and hit the ground with a clunk.
Talk about disappointment. Luckily the pieces could be reassembled by a child, but from then on I knew the integrity of my BB gun was compromised.
Oh, I also used to jab the muzzle into the dirt on purpose. That way, when you shoot, it makes a little puff of dust and looks like smoke - like a real gun!!