Nope, I do it all the time. If it's taboo for guys to do it because it's "feminine" or whatever it's portrayed or depicted as, then heck with them. I used to do that sometimes in middle school, and one guy seemed offended that I did that. I didn't give it a slightest care. It's comfortable, and when I'm on my phone sitting down, I usually do it so I have a little privacy from on-lookers. There's always something someone has to point out as a flaw, it's so common to me that I expect it all the time. I just do it to set the fire off, and see how many blow their tops at the most simple things. It's only made me more rebellious against those who think that way, so I do more what I feel comfortable. Thanks to all who pointed my flaws and made me stronger against you, society!