mountain eggs multiple bad incidents with motorcycle swine today, one while descending at around 90 ks an hour. Two swines cut me real close while I was cornering (nearly gave me a heart attack), went into oncoming traffic while they were at it causing cars there to evade and brake hard. The other was a biker gang overtaking as close as possible and some of them shouting stuff at me. That kind of thing happens often, if I have 10 bad experiences with motorists in a year 9 of those are with motorcycles and most of them the biker gang type