One of the very few interviews in my life that I ended early was the one where in the third hour of it, they usually mentioned that the (competitive) salary was based on a 45 hour work week, with "occasional" mandatory overtime as the needs of the company dictated.

Knowing from earlier that they were very short at the position I was interviewing for, I asked for a more specific answer on what I could expect as "occasional" and the response was, "Well the work for your position has been backlogged since the previous employee quit, so for the first 3 to 6 months you can expect to work 50-60 hours each week, every week. After that, it will probably only be two weeks a month. But you can work those extra hours on the weekends too, so it's not as bad as it sounds!"

I was already done but I did some quick mental math and realized that dividing even their higher salary by that many more hours, not only was it insanely more work but was actually like a 15% pay cut, in terms of hourly rate, than the job I currently had.

I explained this to the guy and asked how much wiggle room there was on salary and he basically said something to the effect of, "Maybe in a few years you can negotiate salary, but coming in you're really in no position to argue for more pay."

So I thanked him for his time and told him the interview was over.