Anytime you get a bunch of guys together, usually military/LE in one place you're going to hear the "I'm gonna shoot you" comments among buddies. It's a part of the comradery and means nothing. Cops will also frequently half draw their weapons to ingrain muscle memory in acquiring a grip and manipulating the retention. Again, this isn't cause for alarm.
However, and this is a big however, these things should not be happening in the public eye. An officer who is half drawing his weapon and making comments about shooting patients in a hospital where people can see and hear is way out of line. A complaint to the department wouldn't be a bad idea. Also, there's a big difference between doing a half draw at the station and actually removing a loaded gun from the holster. Guns should be unloaded prior to practice and should be pointed in a safe direction and never at each other, even when unloaded.
However, and this is a big however, these things should not be happening in the public eye. An officer who is half drawing his weapon and making comments about shooting patients in a hospital where people can see and hear is way out of line. A complaint to the department wouldn't be a bad idea. Also, there's a big difference between doing a half draw at the station and actually removing a loaded gun from the holster. Guns should be unloaded prior to practice and should be pointed in a safe direction and never at each other, even when unloaded.