1. Use Clapping pistols, especially if you have a wide fat hand. Enhance pistol usage by using security camerasproperly to avoid shooting your ears or cheeks.
2. Purchase burglar proofs and add live wire to enhance protection
3. Purchase nuclear bombs for emergency... Really useful when your room has been hijacked.
4. Wear earphones to listen to better music :)
Lastly, don't forget to wear life jackets (with bulletproof) when sleeping in case these terrible blood suckers breach your security.
Hope you find the information useful :p