Crashing Other People's Phone Conversations Prank (VIDEO)

WATCH: Phone Conversation Prank
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Next time you're waiting for a flight at an airport, and feeling rather bored, we recommend this trick.

It's by the guys who did Dancing Behind People At The Mall prank - and it's just as silly, just as delightful, and just as likely to incur the wrath of those you are pranking. Hoorah!