Three bums - Dusty, Jake and Loner - were walking down some railroad tracks when Jake stops and asked the other two,

Three bums - Dusty, Jake and Loner - were walking down some railroad tracks
when Jake stops and asked the other two, "Hey, did either of you guys shit
in your pants?" Dusty and Loner both replied, "Not me Jake." "Well, I smell
shit, and I think it's coming from one of you guys," said Jake. They walked
a little further before Jake turned to Loner and asked, "Are you SURE you
didn't shit in your pants?" "Well Jake," said Loner, "don't ya' think I'd
know if I shit in my pants?" With that, Jake knocked Dusty to the ground,
untied his rope belt and pulled down his overalls. Right there in the
middle of the seat of his pants was a flattened out shit, lookin' like a
big old dried out brown pancake. "I thought you said you didn't shit in
your pants!" cried Jake. "Ohhh," replied Dusty, "I thought you meant
TODAY ..."