I've had it once, I didn't notice the vine on some huge logs I cut and carried, short sleeved and the log edges digging into my arms while vine was dripping juice into the abrasions. Otherwise I can basically roll in it.
I have a similar fight going every year with thistle however.
A neighbor with a 25-30 acre pasture which right now looks more like a thistle production farm.
My place is almost thistle free but in about 2-3 weeks seeds will be raining over in the breeze.
They always wait to cut/bush-hog until after it goes to seed.
