Grammar Spaz

Although my grammar has definitely become worse over the years, I still notice word usages that offend my ears. The New Yorker expression "Waiting on line" is one of them. New Yorkers never wait in a line, just on a line. It is scary that I am starting to get used to hearing that now. I'll be damned if I ever say, "I was waiting on line in the CVS when.." Now I notice when people say "waiting in line". If you ever hear me say that, alert me immediately (although I am not worried about it). Anyways, I am getting sidetracked. There is a big sign outside our gym reminding people to wipe off their shoes and clean the machines (January New Years resolution crowd etiquette). At the top of the sign it states, "At this busy time". It bugs me that that is was too hard to write "During this busy time". Yo, Where's my busy time at?