Or is it a misunderstanding from the boss. Could it have been said that WC isn’t going to cover heat exhaustion(since it’s a tough thing to prove and generally short term) so make sure people are hydrating and not over heating and that boss either took it wrong or announced it like he shouldn’t have?I wonder if there's some weird loophole where they provide cold water or something and then it's your fault you didn't hydrate.
Sounds like an ass hole boss though