I used to carry a company-issued pager. All of us got notifications whenever our code threw an error.

One day someone put an error in a tight loop and had notifications enabled from his dev environment. All our pagers started lighting up. It took over 30 seconds before one of us was able to open it and figure out where it was coming from. "CHRIS! WHAT ARE YOU DOING?!?!?!?!" "Huh? Oh, is that me?"

We had to call AT&T and ask them to empty all 13 of our inboxes ... including any "real" messages caught in the crossfire. They ranged from 11k to over 17k per box. And we were supposed to be charged per message. The alternative to having them delete everything would have cost 5 figures.