Yeah, my boss takes days off all the time (and deservedly so), but I'm accruing "use or lose" days at a scary rate now and I have no vacation plan in sight other than a few days in May for family and a week in July for family.
Edit: And to be clear, I think this has been and will continue to be detrimental to my work product overall, the only reason I haven't taken a break yet is being I'm triple-hatted for now until July or so. By then I'll have a chance to think about what I want to do with my break, I hope.