There probably isn't a law against it, more's the pity. Paine now saying Smith wasn't cheating, but why on earth would you be doing that otherwise?
42.2 Level 1 offences and action by umpires
42.2.1 Any of the following actions by a player shall constitute a Level 1 offence:
- wilfully mistreating any part of the cricket ground, equipment or implements used in the match
- showing dissent at an umpire’s decision by word or action
- using language that, in the circumstances, is obscene, offensive or insulting
- making an obscene gesture
41.12.1 It is unfair to cause
deliberate or avoidable damage to the pitch. A fielder will be deemed to be causing avoidable damage if either umpire considers that his/her presence on the pitch is without reasonable cause.
I think there's a case