I think that is what pisses me off the most about the antics of the pressers and the weigh ins. The lack of respect.
As a quick example... Anderson Silva was fighting Chris Weidman (Sp) for some wight class UFC title. The brazilian kicked Weidman and his tib and fib broke on impact with Weidman's knee. Anderson fell down screaming and Weidman ran around the ring cheers and chanting and in his post fight interview he was boasting how he had planned it all along and it was meant to break his shin. BS, it was a freak accident, but one that could have meant the complete loss of the limb.
In Contrast...
Dutch Thai/Kickboxer Tyrone Spong fought in a bout against Gokhan Saki in Glory 15, a high level kickboxing organisation. Spong threw a Thai style round kick, Saki blocked it and the Dutchman's leg broke on impact. Before he hit the deck, Saki was almost cradling him to the floor to reduce impact and was screaming over to get medics and alert people to the problem.
That is respect for you IMO. Some fellas in MMA seem to have lost that level of respect. Although the mouth does tend to sell the fight better.