Mayonnaise
Banned
well, nevertheless, the same set of ITF rules states very clearly that the umpire has leeway to interpret the rules.
"Make the first determination on all Questions of Law arising during the match,subject to the right of a player to appeal to the ITF Supervisor/Referee"
http://www.itftennis.com/media/107082/107082.pdf
Where is the question of law in buttpicking your way to way past the permissible time limit, on every point? That's not even a judgment call. It's umpires failing to do their duty because they're scared or incapable.