Any part of speech that can't decide whether it's related to a verb or an adjective should not have the right to live.
I don't care if it is temporal or causal, if it introduces a participial phrase, and if it indicates relative time from the proper verb of the sentence, or what the heck its aspect is. I HATE PARTICIPLES!!!
And the chance that I'm not typing this as the little men in white coats try to convince me to put the keyboard down and slip into a very comfortable straight jacket?