Had a relative stealing my saw and mower gas for his and his buddies' scooters. I put about 3 cups of sugar and a bottle of caro syrup in a 2 gal container before filling it. Never slowed them down that I noticed.

Dave

 

I agree with dave2, sugar burns well, it won't hurt anything except maybe clog a fuel filter if it is not fully dissolved. There are other ways to make a mess!

 

Sure is, I caught them in the act and cut 6 tires before they could get over the shock and start scrambling to get the mopeds out of my way.

 

sweet........

 

well, you really dont have to put it in the tank, just make a pile on the ground right under the filler, - it just has to look like somebody did. an imagination can run wild.

 

Besides, I think bleach is the one that worked wasnt it?

 

I would see getting better usage out of that thing as a fridge magnet! But then again, its mighty pricey for holding up your kids' drawings from school. lol