What would you think if you were out with someone you re dating and they laughed at something like a child getting hit by a car?

My girlfriend (24F) and I (25M) were walking home from the grocery store and there was a child playing with a ball in the street. A car was coming and two parents were screaming at the kid to get out of the way. The child got out of the way in time but the parents were still frantic. My girlfriend laughed at it, like reeeeeeally loud. And I was like oh my gosh shut up. The parents looked over at us and I pretended I was laughing at something on my phone. <br><br>What would you think/feel if you were in my position?