For sure spending a lot of time out there on some of the other forums can set a body on edge. I do it because I think I was born to argue. . .

. . .but when I start feeling angry and/or frustrated, I know it is time to go do something else.
Typically, if I'm not smiling in regards to politics, I stop posting.. I'm not big on regret and necessary apologies.
I doubt you ever need to apologize for much Lumpy.
It took some practice but I finally got the hang of mostly not posting things I would regret later and/or would have to apologize for on the politics forums. I can't say I have achieved perfection though, and I still have to do a mea culpa now and then.
But I do this for mental exercise to an extent, and for enjoyment. If I'm not enjoying it, I'm not going to do it for long.
Well, I'm not always nice, some say I'm passive aggressive and a troublemaker, it seems like me.
As you know, there's a lot more said than the words, I guess I like that part of the, "mental exercise", reading the tells and the bottom lines.
I like teasing a little too much at times, it was a matter of survival when I was growing up...
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