Some say it is good luck, but in this case fortune played no part in what happened to a crowd of innocent Americans during their day out at the beach.
This video shows a group of boys pulling a prank involving a flock of hungry seagulls, crisps – and laxatives.
The results? Less than delightful.
In the video, filmed with a mobile phone, a group of young boys are huddled over a tray of crisps where they are adding laxatives to what looks like some form of dip.
The lads mix the sticky substance and the crisps and turn around to give the crowd on the beach an unwelcome surprise.
The esplanade is full of revellers enjoying the seafront, people on roller-skates and families with picnic blankets.
The boys grab their tray of prepped crisps and throw them at the seagulls before running for cover.
They film the not-so-clean results as nature kicks in within seconds and although it’s meant to bring fortune, the gulls’ victim’s don’t look like they believe in the saying.