quick ethics checkup: are any of these cheating?

[WutRUTryin2Hit]

Word, thanks guys, continue to discuss if necessary. I did think afterwards that the case #2 was a bit weird, but at the time didn't give it any actual thought, just hopped into the games. Won't do that again. #3 obv. fine I figure yeah. All this talk about multi-accounting and buying accounts lately anytime I look in on mtts is discouraging, I sort of wanted to get back on the mtt grind a little, but it just feels like everything is so shady these days. Anyhow thanks for replies, it's about what I figured the general consensus would be.