Son poured salt on my grass

I hate my lawns as it is. My new build lawns have been rubbish from the start but at least there were no patches! My son got a hold of table salt and went to town on the grass poring it in around 5 or 6 locations. I tried washing it away and then tried pouring lawn feed on it, but no joy. I'm not sure there is much i can do at this time of year. Where do i go from here?

 

Hate it when that happens

Wait till he works out how to make a flamethrower with a can of hairspray, just after you've laid a new carpet

Best let the winter rains wash it thru and re seed in the spring

 

Can't you just shoot him Mr Mainwaring.

 

Grass is very tough