Interview Question for Human Resources at Harrah's Entertainment:

Come on, lets be realistic here. If you say "none", I think it sounds like you are trying too hard to get the job, and what if someone close to you dies (you said no reason could keep you from missing work). It's one's choice whether or not they think a funeral is important to attend... My point here is honesty; answer honestly, and then you won't have any regrets about even minor lies you pulled off during the interview process.

My answer would be obvious reasons: personal loss (death of a family member or close friend), child birth, sick child... otherwise, I would love to be at work everyday I am scheduled!!!