To "prove" any charge, all the Company has to do is show a change in behavior from their operational records. If the way you fly your jet some how changes (increased taxi times, longer leg times, etc.) they've got plenty of proof for legal action.

Either that or some other disciplinary action. And yes, they can get the F/O, too. I know of one specific case where two pilots were suspended because they flew a month of turns where the legs average 40-45 minutes longer than the rest of the fleet average. Your F/O is an accomplice to your wrong doing if he simply goes along with your "plan."

I'm assuming you're a fairly new guy with no experience in or knowledge of Union activity history.