Unfortunately, being one of those "exempt" employees most of my working life, I have no "clock". Most places I've worked have been decent regarding comp-time for OT worked. You never really got all of the time back, but at least you got something.
My current employer, though, likes to remind us that as an exempt employee, "occasional" OT is expected and comp time is rare. So I do my best to make sure that the "occasional" OT is truly the exception, and I get that time back somehow anyway.
I did walk out on a manager once (*sigh*, I miss the days when I/T was booming and I didn't have a mortgage
) We were working on a project and management demanded 60-hour weeks from us, and it got to the point where I was one of the few actually doing that. I had just gotten off the phone after making diner plans with a friend after my 12-hour day and my supervisor wanders over kind of sheepishly and says something along the lines of he really hated to have to ask me this, but I was going to have to cancel my plans because there was some sort of problem with the latest test run, the details of which were available at 9AM that day, but the user didn't bother looking at it until after 5PM and it was suddenly an emergency, so the data would have to be corrected and the test redone -- and the test runs weren't even
my responsibility. The person who did the test runs left after his 8-hours were up. So I looked at the supervisor and told him "I've done my 12-hours for the day, maybe you should call the people who are barely doing 8 hours, especially the people whose responsibility is is to DO the test runs and have them finish their job!" and walked out.
Turns out I was still employed the next morning and he actually called the other guy back in.
During my time working for Menard's, I was
never asked to work off the clock.