How are Freeze Offs still a thing happening?

[AGENTSxOFxCHAOS]

Sitting in one now. BR. Bottom of the second. I'm up 1-0. No outs. Runners on 1st and 3rd.

Guess I'm doing something else for the foreseeable future.

[Hubijerk_PSN]

I've bee non the receiving end of this a few times, I've also had some funny things going on and then had the other guy disconnect... I have no idea how this is done. Is there anyway to tell if a guy is trying to initiate this? Frequent pausing, etc...