Most people, probably during their student days, have been given a jolt after encountering a midnight mouse in the house.
But this is a whole other level of nope.
One poor woman in the Wirral actually bumped into a boa constrictor in her flat.
Merseyside Police were called to the scene after reports of a snake, and sure enough, a 6ft-8ft reptile was waiting for them on arrival - creepily wrapped around the sink.
Officers were apparently "flabbergasted".
Understatement of the year so far.
Experts say the snake was not poisonous, and it has since been moved to a local pet rescue facility, but they still aren't sure how it got there in the first instance.
Both unsuspecting resident and intrusive reptile are safe and well following the incident.