Rarely if ever bored. My eyes may glaze over when I'm doing budget spreadsheets but that's not boredom, just resistance to finding out I can't really have my next Apple gear when I might want it...
I've noticed sometimes just about the middle of Hollywood movies made in the past five or six years, I feel like my interest is waning. Could be how the plots are structured in 21st century commercial film productions, what do I know. Like parabolas, so we feel weightless at the top but then comes the downhill run so we wake up to get ready for the crash landing in happy-ever-after territory? That's about as close as I get to boredom. Mostly I feel like there's not just enough time in any day for everything I'd like to do!