![Friends don't let friends concatenate results inside a loop](https://blogs.sas.com/content/iml/files/2015/02/concatalloc.png)
Friends have to look out for each other. Sometimes this can be slightly embarrassing. At lunch you might need to tell a friend that he has some tomato sauce on his chin. Or that she has a little spinach stuck between her teeth. Or you might need to tell your