>Bulbasaur, use Tackle!
you say. Bulbasaur jumps and rams Charmander, dead in the stomach.
"Bulbaaaa!" it yells while on top of Charmander.
However, this gives a chance for Charmander to use Growl--Up close and personal.
"Charrraaaaa." it cries out sweetly (wtf?!), and Bulbasaur mellows down a little bit.
"Charmander, use Scratch!" Gary commands. Charmander then pushes Bulbasaur off of him and takes his claws and scratches Bulbasaur using them. "Use Tackle again!" You tell Bulbasaur. Bulbasaur rams Charmander, and even though it was a weakened Tackle, Charmander is it with it hard (Critical hit!) Charmander faints.
"Unbelievable! I picked the wrong Pokemon!" Gary says as he recalls Charmander. "Alright, smell ya later Red and Gramps! Gotta toughen up!" He tells you.
And then Gary leaves. Meanwhile, Oak slips 5 Pokeballs and a Pokedex into your bag. You feel the movement and turn around and have Bulbasaur tackle Oak. Bulbasaur then just happens to gain a level.
"I was just trying to help..." Oak says. "Gary and Leaf already forgot theirs so....."
"Oops." Just slips out of your mouth. "Come on Bulbasaur, lets go to Route 1!" You instantly forget that you just had your Pokemon tackle an old man.