you paid for this typo

Users of the Oracle database may have seen the following error if they've been playing around with storing hierarchical data and running fancy queries to retrieve them using CONNECT BY:

ORA-30004: when using SYS_CONNECT_BY_PATH function, cannot have seperator as part of column value

Aside from the refusal to use definite or indefinite articles, there's a common misspelling of separator.

I really wish I could remember which series of Dell's projectors is plagued with a typo on the screen that notes that there's no signal. Somehow the misspelled form (singal) made it through all the editorial gates and stood out like King Kong's sore toe on every screen it was splashed on. Talk about sending out the wrong signals.