Well, I know my minors certainly got filled to the throat with houseflies when I was visiting relatives in NC (bought them there.. the minors, not the relatives [img]http://www.**********.com/iB_html312/non-cgi/emoticons/laugh.gif[/img] ), and the pitchers eventually started to rot. Totally normal.. so the answer to your questions are yes and they rot.
Houseflies.. that Goldsboro military base in NC gots lots!!!!!!
Hope this helps!
FTG, a.k.a. lovesick Kenny-Chesney-lunatic