I've didn't got many but the few "events" that pulled me to help, one had the aim to almost screw up great a romantic date friday night, and the other had even more accuracy (details NSFW).

Being on-call is a deal breaker / non-starter for me.

I see myself helping the guys in operations to stay happy and well equiped to deal with keeping the service up but I am not doing operations myself.

Ever.

A challenge for this is that when the devs keep being hammered with new features and they cannot allocate to improve the system defensivness against these "events" then the thing gets tricky.