I had fun casting fireballs at cowboys and turning their guns to chickens, haha. It took me a while to realize that Spacebar slows down time (reading instructions is for noobs!) and I found it entertaining to (imaginatively) set fire to their churches and homes.
The idea of a wizard transplanted into the wild west would certainly cause a ruckus with unexpected results, though I was surprised that they were angry enough with me to spit vulgarities at my otherwise peaceful self. Oh well, it's nothing a chicken-transformation spell can't solve!