I had time
and the weather was cooperative;
not too hot (high 80's)
humidity wasn't too high (mid 60's)
so I laid a few sheets on the ground
in a shady but-not-under-a-tree spot
and set out all of my to-be-primed goodies.
(I hope I didn't forget anything!)
The 3mph winds were blowing my sheets a bit,
so I had Jeremiah put some rocks on the corners.
After reflecting, I realized the question he asked next
was completely legitimate,
"Are you going to prime the rocks?"