Yea, out of position welding can suck. I was welding some support bracing for a large door 18' above the ground, upside down. I still have the scars on my neck. You can't let go; you can't jump.That reminds me...
Not soldering, per se, but while arc welding I "sparks" (also known as chunks of red-hot metal) sparks like to jump from the rod when you strike an arc.. SO, this one time in-particular, I was welding a chain-point to a front-end loader, and when I struck the arc, the "sparks" jumped over my helmet and slid down the back of my shirt.. Sticking nicely to my sweaty back.
I was dancing QUITE UN-gracefully trying ease the pain.
John