Totally valid that my boss probably didn’t want to be there either, but for context this was circa 2008 Google where “offsite” meant “go spend company money to do something fun.”

Alternatives were literally things like going to Napa or an amusement park or go-karting. Or if you really wanted to watch a movie, the options were all other movies. Why pick the one that digs at the tenets of your shared reality?

Because your manager might have been dealing with something privately, and didn't feel like doing something fun, but had to because the Gods Of Corporate decreed it so.

And so, an act of rebellion against a shared reality that forces you to have fun on schedule when it's time for the quarterly offsite.