1. move your kickstand switch to inside your fairing, and replace it with a toggle switch... Everytime they go yo put it in gear it stalls... ( Just remember to put up your kickstand)

2. Hardwire your horn to your power switch.... When someone goes to turn it on the horn blows LOL... Then move a real switch to some other convenient place in case of emergency...

3. SUPER GLUE your ignition wire clip.... ( Very important on GIxxers)...

4. As Cami said, a garage is always the best bet...