Originally Posted by Vincine
I remember stories about people who would spend some amount of time and care, gift wrapping small boxes with ribbons & bows, and then forget them on their car seat after they parked in less than ideal neighborhoods. Lots of times they would forget to roll up the window or lock the door before they took a stroll around the block. These gifts were almost always stolen before they got back. They never learned.
This was a long, long, time ago, during a couple of NYC Sanitation strikes.
With just a little imagination, you can make the presents more memorable! I used to know someone that filled water balloons with Mercaptan (see below), put the balloons in the present, and then rig the box to burst the balloons as the flaps were opened. If the thief takes it to his home or car, not only will he be vomiting for several minutes, but he'll have a home or vehicle that can't be occupied for weeks or months without professional cleaning...if you can find someone to do it.
Quoted from Wikipedia (http://en.wikipedia.org/wiki/Methanethiol
Methanethiol (also known as methyl mercaptan) is a colorless gas with a smell like rotten cabbage. It is a natural substance found in the blood and brain of humans and other animals as well as plant tissues. It is disposed of through animal feces. It occurs naturally in certain foods, such as some nuts and cheese. It is also one of the main chemicals responsible for bad breath and the smell of flatus. The chemical formula for methanethiol is CH3SH; it is classified as a thiol. It is sometimes abbreviated as MeSH. It is very flammable.