Lol, I'd bet everybody that can loves doing that. Our tanks purposefully wait to use their pull until the sentinel[s] have lept in. In some pulls and compositions, the tanks spread out and play "keep away".
Not a sentinel, but a shadow. In EC I will see the bomber first and hit force speed...just about in range to hit force breach....tank pulls... It is funny in HMFP or doing dailies, I don't laugh in EC. So I have to run back and I use Project along the way and my rotation is ruined. If I don't run, the tank doesn't pull...will never figure it out.