On the night of the prom, a boy's girlfriend is changing upstairs. The boyfriend is waiting in the living room with the girlfriend's granpa and her dog Rover.©OFFICEJOKES.NET

As the girlfriend is getting ready the boyfriend says to himself, ''Man I really gotta fart, I think I will let a little out.'' So he does and the granpa yells ''ROVER!''©OFFICEJOKES.NET

The boy thinks to himself, ''All right, now he thinks it's the dog. I think I will let a little more out.'' So he does and the granpa yells again, ''ROVER!''©OFFICEJOKES.NET

The boyfriend says to himself, ''All right, now he really thinks it's the dog. I think I will let the rest out.''©OFFICEJOKES.NET

So he lets it rip and the granpa yells, ''Rover, get over here before that guy poops on you!''