Well, I think I've done it 7-8 times in my life maybe. The only
weird experience I didn't care for was looking at the mirror and
getting a mental replay of a scene from the original Poltergeist
movie where a guy is ripping his skin off in the mirror. But it
only lasted for a moment and I started laughing hysterically at
the absurdity of it.
Walls breathing didn't bother me. A floor squeak was a friendly
monster who just wanted to say "Hi" and hang out, but couldn't
fit through the doors, so he stayed elsewhere in the house.
One of my favorite mini-moments was looking at a searsucker
shirt I was wearing for work. Searsucker is a pattern of
alternating black and white stripes, very close together, maybe
2 millimeters apart.
I looked down in amusement as little zebras were dancing around
in there. One of the zebras had colors. The other ones didn't
like it, but then a regular zebra unzipped his fur and was
shining in even brighter colors than the one they were mocking
and they respected him and they lived happily ever after.