100 Questions from Cartoons (Pt.2)

With the opening of Trans2 coming in about 2 weeks
part 2 will be dedicated to the old (G1) Transformer cartoon

1.) How come Prime and the rest of the Autobots could fly in the pilot, but starting from the second episode they seems to have forgotten how to?
2.) As brought up in Robot Chicken, what would happen if a human is still inside an Autobot when it transform? Home made tomato paste?
3.) There are known to be female transformers, although rare. Does that mean the robots could reproduce? If so, how?
4.) Since Unicron eats robots and planets and whatever... does it ever poop?
5.) How is it physically possible for Megatron to transform from his robot mode into that tiny @$$ gun?

That's it for now...