Heh, I have a similar story Ozzy. When i was 10 or so, my mom was a part time folk musician and she dragged me along to pick up some CDs she recorded. Well, this building had that typical, glass with metal square tubing dividing the panes, deal on the outside. And there were black widow webs in the corners.
So one day i decided to bring along a plastic jar to capture one of the ladies. I tapped the rim along one web and sure enough, big fat spider popped into the jar. I put the lid on and took it home with mom's permission. I put it in a glass aquarium with a cloth top (avoiding your fatal mistake Ozzy). I kept it in there, popping in the occasional carpenter ant or two.
Now, I should mention, I was a bit arachnophobic. But i guess my curiosity won out in this excursion.
Anywho, one day, she made up 2 or three egg sacks..... Well, arachnophobia got the better of me. I never opened that thing again. The sacks hatched and thanks to my ingenious cloth system, no babies came out. I eventually just kicked the whole aquarium outside and never touched it again.