enraged Lemonade Vendor [Edgar Kennedy]: I'll teach you to kick me!The usual sense of Old English tæcan was "show, declare, warn, persuade" (compare German zeigen "to show," from the same root); while the Old English word for "to teach, instruct, guide" was more commonly læran, source of modern learn and lore.
Chico: you don't have to teach me, I know how. [kicks him]