If you are hit with an egg you don't know what has happened until you examine your auto or see the person throwing the egg.
If you see it being thrown you have no excuse for not exercising self restraint because you know that it is only an egg.
On the other hand if you stop your vehicle to find out what happened you discover that your auto was hit with an egg that can easily be washed off.
My post responded to unforseen incidents while driving, such has having a windshield shattered by gravel flying from a dump truck. It's unsettling but it's only a windshield. Nothing about your vehicle is worth the killing of a 14 year old unless that youngster is clearly approaching you with the intent of doing harm to you or someone with you.
It's only a car.
The "it's only an egg" crap doesn't wash... What next? It was only a little B&E. Only a little sexual assault? Only a little grand theft auto? After all, no one is losing their life over it right?
And people wonder why crime doesn't go away.
If it's only a car and it harms nothing, then why not let people throw eggs at your car all day. What kind of logic is that -- that there's no intent to harm? No intent to harm would NOT be throwing eggs in the first place.
But that's assuming you don't crash your car, veer off the road, lose control, as a result of being hit by an exploding foreign object, FIRST.