Going for a Dentist Appointment
Magpies and seagulls are well known for snatching practically anything that comes in their path. Like us, you likely watched out for your fries as you walked down the boardwalk. However, this appears to be the most personal item a bird might take from you.
Source: Reddit
This bird has stolen a set of dentures. We can only hope that they are an old pair that someone no longer needs. Birds are so funny because they will probably never need what they steal. Maybe it has a dentist appointment soon and wants to upgrade its dentition.