[cdvonstinkpot]

And it's an 'additive' kind, being that I get an additional boost of happy neurotransmitter thinking I'm adding a beneficial comment, thus potentially helping a reader to an understanding I have & perceive that they might not have as strong a grasp of. I like to help, thus am happier. If the form button fails to submit my contribution, I feel disappointment. At having wasted the effort in trying to contribute, but moreso, at not contributing.