I'm pretty much the worst typer (that's not a word; typist,typinger-person) in the world so almost everything I type has typos
I've been guilty on several accounts of leaving off the 'o' in hello, which makes for an interesting start to a conversation online.
This actually come from a friend who works in a psych hospital, but it was funny, so I decided I'd share it. She was going through a patient's chart for a discharge note and came across a treatment plan review wherein one of her co-workers wrote "patient has attended sex groups since admit." We're 99% sure she meant "six groups."
Less of a typo and more of a "I was writing at 3am so this happened"...one of my characters was meant to say "Nobody believes in omens." I woke up the next day and he'd ended up saying "nobody believes in orphans".