I removed the P-trap from underneath my bathroom sink and cleaned out a messy clog. (Blech!)
I thought all was going well, but as I was reinstalling the trap, the metal pipe detached from from the stub of piping leading down from the top of the sink (as in the photo). It felt like the two pieces had been very lightly sealed together.
In your answer, please take into account my basic plumbing knowledge. If you use a term fancier than "pipe," please define it.
Thanks for your help.