Unfortunately the .at TLD is not even remotely popular to my knowledge.
"Bored at" might work if you develop it. It's a stretch, but something like:
work.bored.at
school.bored.at
Could be done. Post-development you could extract more value out of the domain itself - but if you just sit on it, I don't expect the value to go up much higher than reg fee, 1.5(reg fee).