Who knows what pets do when we're away at work or school, but one thing is for sure: when you're home, they're watching you. They see everything.
If pets could talk, they'd probably just discuss the weird things we do when no one's watching (luckily, they can only tweet so far). Still, it's pretty funny when you catch them in the act.
Check out 42 pictures of pets sneaking, creeping and generally lurking around the house watching your every move below.
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