Your ass tells you you need to fart, gotta let one go, and right now. Upon sphincter relaxation, you discover the backlog in there wasn't all just the 3rd state of matter. Nope. There was some liquid, and some solid, too. You have been...deceived. And you need to change your shorts, at a minimum.
"He went home to change his clothes. It was urgent."
"Well he was in a meeting, and just had to fart, or so his ass promised him. Massive pressure. He finally lets 'er go. Well it turns out he shat some, too; he was deceived by his own ass into thinking it was just gas, but it had mass".
"Yes, filthy deceiving ass. Never trust a fart!"
"Amen to that, brother."