My dogs NEVER wear a collar when inside the house because one time a few years ago Nanook's tags became stuck in the heat register cover. Thank god I was home & the heat was off. But I won't chance that ever again.

I have heard of a few other freak accidents involving collars in the home too.

They are all trained to not run out the door or run away, they are very loyal, trained well, have a good recall and have microchips just in case.