I hemmed and hawed and finally pulled about 50 thistles from the lawn, but got lazy and left the ones nearest to the fence for another day; this morning, they looked like this:

Shit. NOT thistles, but poppies. Glorious, weird, opiate poppies.

Honestly, nothing has the right to be this absurdly beautiful. I half hate myself for my weeding zeal -- I've run out of dandelions and prickly lettuce and buckhorn plantain, and I moved on to the "thistles" that had managed to escape the purge of other weeds.
Sigh.