Have you ever felt like doing this?
I knew a very big man once who went over to a motorist who was blowing his horn and said, "Excuse me, sir, I am a motor mechanic and I couldn't help noticing that you have an easily rectifiable fault under your bonnet. Would you like me to take a look?"
Pleased at this offer of free help, the motorist pulled the bonnet hood.
My friend reached in and said, "Ah, here it is". He ripped out the horn and handed it to the owner.
This was a very long time ago. Not to be done now, even if you are very big, because the motorist may be armed.