Again someone is going to have to break into your house to accomplish this. You have much bigger problems if that happens.
The more realistic approach would be people sitting outside of your house trying to brute force your wireless password, which only works on networks with default or weak passwords.
The odds of someone breaking into your house to use your net are virtually zero. On the other hand people sitting in their cars to high jack wireless happen all the time. Anyone can do it they just need to be in proximity to your house and you’ll never know it’s happening.
No