Before Season 1Edit
Donny and Earl used to be good friends, but Earl later avoided him because he believed Donny to be crazy. One time after a paper boy threw his paper at Donny's beer, Donny tackled him to the ground.
Earl robbed a donut store with a water pistol, hiding his face under a pair of women's tights. Earl failed in his attempt to rob the store and fled. However, Earl was wearing Donny's shirt while he robbed the store and caught his cold, causing the clerk in the store identified the thief as being Donny. Donny was sent to prison and served two years. In his time in jail, he found religion.("Quit Smoking")
Donny was with Earl when they thought the end of the world came following the year 2000. They took over a Bargain Bag store, and tried to start the world again. However, they soon found out that the world was not over, and left the store quickly ("Y2K").
Donny was in Earl and Joy's Anniversary when he tried to kill a bee with a gun.