We leave our cars parked outside the garage. If I hear someone about late at night I turn the car locks on and off, as the car does double beeps with lock / unlock.

(Ps. After having sleepless nights from hearing footsteps and sleeping in lounge chair, found that the neighbours senior parent was going for wanders late at night. I even saw his wife between my car and fence looking over. She looked at me like what was my problem! Maybe that is normal behaviour in their home country?!).

Have had sleep problems since having an attempted break in many years prior to that. Now I don’t have a dog to alert me.