I hate people who steal packages and mail. We can't get any type of package or holiday cards mailed to my house. No valentines, christmas, holloween, no birthday cards because someone always goes through our mail and opens the cards looking for money. They were even stealing my sons Kids National Geographic magazine...asshole. Someone used to steal my grandmothers Sunday newspaper. So one day I got up super early, put some dog poop in the middle of some old newspapers, and switched it out with the Sunday paper. They stopped stealing her paper :)
Remember - even if they deserve it, which they do, - You cannot legally booby trap things like this with dangerous/deadly force. It'll get you sued/jailed. If all your left with is non-dangerous things to startle or annoy remember that the waste of life stealing your things will get pissed and then take it out on your house. It's a no-win situation other than setting up cameras in a way to capture their face even if they try to keep out of screen view, and preferably the car they're in so you can turn it over to the police.
With BS like this, if your packages/mail continually get stolen, you just have to resort to paying for a post office box and having things delivered there.
Why is guest getting down voted for telling the truth. Booby traps are illegal and would result in you getting a harsher punishment than the package thief if he decides to take your ass to court because it's considered public endangerment since anyone could set it off whether it's the mailman or anyone else. If you want to fuck them up you need to do it yourself so pokethebear has the right idea if you don't want to go through the hassle of getting a po box or finding their license plates
With BS like this, if your packages/mail continually get stolen, you just have to resort to paying for a post office box and having things delivered there.