Junior pulled a prank and immediately regretted everything

This person was riding a bus with a junior (younger colleague/friend) and decided to mess with them by leaning their head on their shoulder as a joke.

The junior looks up and goes 'Unnie (older sis), seriously stop it' and gives them this look — so naturally, OP decides to do it again to tease them more. But this time, the junior suddenly HOOKS their arm in and pulls them close — like, lips-almost-touching close — and OP smashes their head into the bus window trying to back away.

Then the junior sighs softly and whispers 'I told you to stop, unnie...' and pulls back. OP describes it as a full cardiac arrest moment. Oh, and it was summer, empty bus, just the two of them. The vibe was, in their words, 'absolutely unhinged.'