Is it okay to Crank Down at work?

So I was just on the phone with my buddy fillin him in on everything thats happened at work over the last couple weeks. We start talking and he asks me if I've ever jacked it at work. Now the answer is, unequivocally no I never have, but that doesn't mean I've never thought about it. Go to the bathroom whip out the old iPhone crank down real quick. But I never brought myself to do it. So he says he does it all the time. And I'm like ha ha you horny fuck whattaya do just go to the bathroom four times a day? He then says, "why would I go to the bathroom, I do it at my desk". I was completely baffled. I mean cranking down at work is difficult enough to rationalize when your doing it in the bathroom. But your desk? What if someone sees you? How would you even...Why wouldn't you...So many questions popped into my head I didn't know what to say. Now to end the story he tells me he's doing it the other day and he's tuggin away at his computer and he thinks he hears a car pull up. So naturally he tucks his junk away. Says the fear of getting caught put him from midnight to six in two seconds flat. Guy comes in and my buddy knows the guy...and his son who he's with. Said he started sweating heavily but survived the encounter. The craziest part is I know this won't stop him. I feel like once you've cranked it at work you'll never stop.