Yeah. There's always a chance that a customer could have an issue on a weekend and then I've gotta fix it. Once I was on 27 hours of conference calls over a weekend. But as I've gotten better at my job those sorts of things happen less and less.
Honestly the worst part of my job is doing my timesheets and updating weekly status, but when the weather's good I do that from my hammock with a cold beer in hand which makes it suck less.