Physical Boundaries:
I have issues with wanting to touch random people:laughing: I, sometimes, do it to establish dominance. In fact, that's why I do it in professional settings in a way that's appropriate to the situation, not excessive and pushy, but firm.
At other times, I do it when I am feeling affectionate with people I love. I, often, feel like touching people I like..as in touching their arm as we speak or whatever. I, consciously, refrain from this kind of touching especially with opposite sex strangers/acquaintances because people start getting "ideas" that are wholly unfounded., I can instinctively tell who is 'affectionate' and who isn't. I can be fairly icy, distant and detached when I know I am dealing with someone uncomfortable with touch.
As far as my own boundaries are concerned, I have firm boundaries. So obviously, any kind of unsolicited sexual touching and/or aggressive manhandling will leave you in a hospital bed. Perhaps this is cultural, but I am more comfortable with women (even those I've met for the first time) being physically affectionate with me than men I've just met.
Mental boundaries:
My mental boundaries are fluid. You can tell me anything. I am open to discussing all sorts of crap. If I am not interested, I'll let you know, and I'll direct the conversation to something more exciting or relevant. I expect the same honesty from people.
Emotional Boundaries:
I have very firm and rigid emotional boundaries in the sense that I will share ONLY and STRICTLY on my own terms. I can be like the old Mariner from Coleridge's poem and spill my heart out, if I want to. But when people try to extract emotional responses and information that I am not ready to share, I can enforce my boundaries aggressively. I don't like manipulation, and I hate it when people violate my emotional boundaries. When I am neither willing nor able to share, I want to be left alone. I am sensitive to people's emotional boundaries, and I never ask prying questions.
P.S. I am sp/sx.