I bring for your pleasure four Flash Mob proposals (the marrying kind).  Enjoy?

http://https://youtu.be/78eYzDcVOPg

http://https://youtu.be/iagGW-1VAsU

http://https://youtu.be/5uCP1bkpe9o

 

http://https://youtu.be/qH-J72HiRSo