Me every day at 1200 sharp to scare the crap out of my BFF:

https://www.youtube.com/watch?v=ey_nO60NRS0

If I'm 1 minute too late, my other BFF plays this with his phone:

https://www.youtube.com/watch?v=oHC1230OpOg

Me:

https://www.youtube.com/watch?v=Y5B4iLyznuw

*Runs away as fast as humanly possible*