It’s the public transport code

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Ryan2468 on August 18th, 2018 at 08:24 UTC »

I've even accidentally sent a false alarm to the person next to me trying to get something out of my bag.

wugachaka on August 18th, 2018 at 08:30 UTC »

Hahaha this is so accurate.

Don't forget to say thanks multiple times afterwards.

Soundasleepx on August 18th, 2018 at 10:21 UTC »

Mine is:

brief eye contact whilst clutching handbag

“Excuse me, I’m sorry, thank you, sorry”