All the time! So, what's new? 
It's alright if they act like a mother hen, but it's not alright
if they try to bully the juniors. 
That's the feedback I get from my juniors that one of my fellow NSF
was pissing all over them, making them work, passing sacarstic
remarks.
But being the higher-placed NSF in the pecking order on my ship,
I was able to protect them though....and now they follow me
around.
Lucky that the guy is the lowest in the order for my batch. If
not I can forsee myself getting chewed. Really dislike such
disgusting fellows.