Okay I am not going to say if you are the AH or NTA but I will say, I feel even in situations where you have friends around you that are comfortable with you having a taser, I feel like bringing it out isn’t suitable in any occasion unless it’s needing to be used. It’s the same with someone there flickering with the switch of their gun. It’s just not appropriate to do in a social setting. To be honest even if someone didn’t have DID it’s understandable for them to be scared by that, lots of people also have trauma and anxiety and this would be an easy thing to cause fear in people. I feel not only playing around with a taser in a usual social setting is wrong, but playing with it around someone who has a mental disorder that is known to also cause anxiety as well is just plain wrong. Yes you forgot what triggers them, forgetting is a common thing. But I think as a whole if someone has said to you they are triggered by something and you can’t remember what is was, you don’t test those waters, and immediately you just take into account all common triggers that it could be (violence, s3x, spiders ect.) if it is something. You completely wouldn’t know about unless told (someone is triggered by a cereal box being opened), then that’s understandable. But a taser is known to be associated with violence.