Our apartment is pretty childproofed, but I still watch Charlie very closely. I've never left him more than maybe 2 minutes alone because I'm always afraid of what mischief he might get into. For instance he's a climber and if I leave him in the bathroom, he's usually standing on the toilet trying to turn on the sink faucet.
Am I being too much of a worry wart?
How long do you let your LO play unsupervised when you're at home?