Finding problems in a building that's as old as I am doesn't bother me (much), but the whole "newly renovated" that turns out to have been renovated by a five year old on crack is what's really irksome.

The traps (u-bends) under the sinks look like the Gordian knot. And the one directly under the sink I use most frequently is just a straight pipe going to the knot under the other sink. We've had three different plumbers just look at it and go, "I've never seen anything like this before."