Ever have the pleasure of revisiting some really old code from early days (e.g. interpretive dBASE) where you had to resort to stuff like:
* menu system based around INKEY() loops
* INKEY() loops for password entry (because there was no way to do @...GET and hide contents from PRTSCR)
* "pseudo-arrays" based around macro-expansions where you had a "stem" portion to which you concatenate "subscript" part
* somewhat cryptic variable names because you needed to keep them short. Only made worse when you were using "pseudo-arrays" ("stem" portion needed to be shorter to allow for "subscript" part).