Cheating Fantasy - How low can you get?

There were two trades that went down in my roto league:

Yao Ming+Carmelo for Okafor/Chris Wilcox/Abdul Rahim
Payton/Ray Allen/CWebb for Devin Harris/Chris Mihm/Mike Miller

Between the same two players. I vetoed the first one, still went through. I wasn't around to vetoe the second one over the weekend, went through. This is such cheating bullshit. I need to quit this stupid league.