@b0rk the panopticon. I monitor _lots_ of work channels and nosey lots of problem threads that seem interesting. Mostly they fall through to on-calls (who I might backchannel a bit) but every couple of weeks, I'll see one that maybe worked on re-running but looks...odd. 'That can't possibly happen. tell me more?'. And it'll be a day of digging, some heisenbug re-occurring since 2016, and 4 services need patched to fix it *properly*...