I agree with the above. Having a rulebook on the field is a bad idea. Although sometimes it would be nice to prove to a coach what you did was right so he will stop complaining, it would just make more of a mess. It opens up a can of worms, he will keep asking you to see the rule.
If the coach wants to call a timeout and he has the rulebook then I will show him or listen to him, but if hes wrong he loses a timeout
