By the way, you should be very careful when you speak out against people that are not wearing a hat and jacket.
There was an alter buchur in my Yesheva who was spotted Bain Hazmanim davening without his hat.
(I think the Mishna Brira says you have to wear a double covering on your head when you daven.)
When the Rosh Yeshevah found out, he was so angry at him that he started screaming, “I don’t mind if it wasn’t a borsalini, but chodsht (atleast) a baseball cap…it is an embarrassment for the yesheva, and if you belong to something, either a company, or a yesheva, you have to know that you represent it, etc.. The Rosh Yesheva was yelling at him, and the alte buchur was all red in the face, then the rosh yeshiva slapped him across the face, so hard, that his Toupee’ and yamike fell off. So the Rosh Yesheva asked him mechilla.