[It's all good, Zelgadis doesn't interpret it as sarcasm. There are all kinds of people here from all kinds of different worlds, sounds like a perfectly legitimate question to him.]

I can read it just fine, I just don't see anything that says "stop". It's mostly numbers, this one says defrost, ah... there's a button with an arrow, and one with an X.

[The X would be the stop button buuuut he wouldn't have known that. Also Zel doesn't realize that he's recording video right now, otherwise he would have just showed the guy what he's talking about.]