Monday I was servicing a heavily wooded lawn on my pg. went between 2 trees and bumped the left tire. this jerked my handle bars very hard! when I looked down my left index finger was diagonal under my other fingers! ouch!!!! I tried to finish the lawn using another finger to operate the weed control switch.. that lasted about a minute! I started sweating and got really light headed! so I got off the pg and started walking to my truck.. made it about 20ft! then took about a 10min nap in my customers front lawn!