Who has a Yellow Watchman Goby?

[Alberta-newb]

I've had my YWG for about 6 months now (first fish in) and has only jumped into my overflow once (I think he learned his lesson) Doesn't move much sand around except for building his burrow under a rock. He initially did pair up with my pistol for about 2 weeks but thet went through a divorce and I don't think they'll reconcile. Moved to the opposite side of the tank and stayed there up untill a week ago when he decided to move somwhere in the back where I rarely see him He gets spooked by the larger fish but definitely shows attitude if I come near him with my fingers