i did a work league a couple years ago and it was definitely more to be social than it was to be competitive - which is fine - but one night was so infuriating. The other team had such horrible etiquette to the point i was starting to think they were intentionally trying to mess with me. Even though each team only had 4 bowlers show up, they would like, just sit around when it was their turn and not bowl. I don't know that i would normally find this so annoying but when you have thrown the first 7 strikes it gets really annoying when you have to wait 10-15 minutes between throwing a ball. just really hard to keep your momentum. And you look around for the person who should be bowling and its not like they are being a social butterfly or are waiting in line at the bar. Nope. They're just sitting there, not even doing anything...just choosing not to bowl.
When i bowled in competitive leagues, it felt like the general rule of thumb was if someone has a perfect game going you don't do anything to mess with them. No mind games, you just let them do their thing. Like yes we are all competing against each other but we all want someone to have a perfect game. Or, at the very least, you don't want to be the person that was disruptive to someone who was en route to a 300.