If you sneak up from behind like that, you'll give me a heart attack!
Months after your loss, that date will probably sneak up on you, and even though you may think you are over your miscarriage grief, this will be a hard day.
No one had ever been able to sneak up on her before, and now, it seemed like everyone did.
The idea he'd never solve this mystery infuriated him, but not as much as the idea she was able to sneak up on him at will.
Or you can sneak up behind unsuspecting mercenary types and knife them in the spine, if you're a particularly malicious individual.