I don't know if this is official but I would rule it a ground-rule double.
Yes. It clears the fence and hits me.
Over the fence flew
backward
A ball hit over the fence
No a pitcher isn't supposed to use a 1st baseman's glove. however if you are talking about in a local league some umpires will not call you. i do by the way have had expierence where i had to change gloves during the game because i was called.
Foul ball
You stick your first finger up if the ball is out. If it is in, you hold your hand flat with your fingers pointing sideways.
A ball hit over the fence
No if it is a foul ball or if it hits the fence and you catch it it does not matter you still can play it if it is not foul but if it is foul and you catch it when it hits the fence they just call it a strike. Actually - you CAN catch a ball off the fence. There is no rule against it, however it will NOT be counted as an out. The fence is part of the field just like the ground. Therefore, if it hits the fence in foul or fair territory, it is played the same as if it had hit the ground before you caught it.
The out of bounds line runs around a football field but never moves.
An outfielder just cannot be jumping up against the wall/fence, I mean up onto the wall/fence.
Jose Canseco