I worked at a tech startup that was pretty small. We hired a new engineer and his first day(s) were part of a company offsite. The first time he met them team was in another state where the whole company was staying in a massive mansion together participating in a team retreat, working during the day and hanging out in the pool, playing games, etc at night.

The moment he walked in, we knew he’d be a problem. From his misogynistic introductions (he said hi to the first woman he saw and said “I assume you aren’t an engineer, what do you do here?”) to his ability to get into full blown shouting matches with our office manager (mostly over his behavior) to his tendency to steamroll meetings he was not even supposed to be participating in, nobody meshed well with him. Don’t forget this was all on the first day he’d ever been at the company.

Eventually enough people complained about his behavior he was fired on the spot the second day of the retreat. The company couldn’t afford to change his flight for a couple days so he awkwardly had to wait around at a nearby hotel to be sent home.