Arm Triangle escape

What's our go-to Arm Triangle escape?

(Please don't reply with "The first thing you should do is work out how you got in in the first place and not make that mistake..." - let's just take that as a given. Thanks).

answering the telepohone and I think that's it. Try to push with the other arm as well to get some space and let him tire.

What do you think of this?
https://www.youtube.com/watch?v=ETfiXYZc4Es&sns=em

even if you are not letting the guy to put you on your back and can turn on your side, i doubt you can turn on your neck. BUT if you can do because the other guy is makeing those mistakes (like not putting weight properly on you) he will change and start to attack your back. You can try, why not, but i don't think that a guy will let you turn like that or if he does, he will just change to simple side control. or there was an opening for armbar. But the critical point if you can get the space to turn on your neck.

Here's another less dramatic escape:

looks much more solid!