why be concern? Let the coach or assistant inform (full or 30) you do not assume one thing and the intentions are another
I find it somewhat embarrassing when you ask the coach if they want a 30 or 60 second timeout, and they say I've used all my 30's, therefore all they have is the full time out. I would like to know that piece of information before I ask a question that can only be answered one way.
If I ask the scorer, by the time he/she looks as the scorebook and finds the answer the coach is well into his/her player huddle and I'd have to interrupt if indeed they have both timeouts left
