When pooping in a public restroom and someone walks in. You wait until they're gone so you can continue your poop.
Hence, the Poop in Public Pause.
Dude, I had the longest "Poop in Public Pause or PPP" in my life. I was at work the other day and couldn't hold my BM 'til I got home. It was going great until someone walked in and didn't leave for what seemed like 15 minutes.