Do you Expect people that bump into you to Apologize?

Say, you're at the store and someone bumps into you and they know they did it because you gain eye contact, would you get mad if they didn't apologize?
For me I would get agitated then I would move on with life after those first 5 seconds of being heated.
What do you believe is the proper way to respond to a situation like this?
Do you Expect people that bump into you to Apologize?
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