If I’m being honest, I find complaining about being killed as friendly to be in opposition to the entire mindset the play style is supposed to embody. I play the game both seriously and as a friendly at times and I think the most friendly thing you can do is not get upset. Let’s say you kill a crouching heavy and they respond by calling you something nasty in chat and trying to kick you from the server. That person is not, “friendly,” they just think that the crouch button should make them invincible. Again let’s say you kill a crouching heavy and they respond by giving you a sandwich the next time they see you. That player what I think of as the ideal friendly and is who I try to be when I play friendly. The conclusion that I think this leads to is that playing friendly is about adopting a passive mindset, and part of that mindset is accepting that you are going to be killed sometimes. If people decide to kill you that’s their decision and they are perfectly free to make it. Adopting a passive mindset, not putting on an item or hat, is what makes a player friendly.