I don't know why people don't understand it's not a noise or action that bothers a shooter, it's the abrupt change in shooting conditions that are disruptive. To go from completely quiet to someone making a loud enough noise has high contrast between the two about it. Same thing with taking off a glove, if a shooter sees that happening that can be disturbing and distracting instead of just sitting still and waiting till after he shoots to take off your glove. On your own time at the table, feel free to take off your glove, stand on your head, and whatever else you want to do, it's your time at the table. Although, when someone else is shooting, a good sport respects that opponent and sthu.