The sink in the bathroom has been discovered to leak down the wall onto the basement ceiling. It didn’t have this issue until the day I found the sink pulled out from the wall. (I blame roommate #2 [though I have no particular evidence].)
Not surprisingly, the PVC pipe on the bottom of the sink detached itself from the PVC pipe in the wall, and when the sink ran, water dripped down the wall onto the basement ceiling.
I doubt I need to say it, but this is not the way to impress me.
Now, if I had this sink, there would be no issue because it apparently is so wonderful it forgoes the need for plumbing entirely.