SCP-053 is capable of basic speech and appears to be slightly above average in mental development. She has a generally pleasant personality and rarely seems upset, becoming agitated only in the presence of groups of people. Any and all humans over the age of three who make eye contact with, physically touch, or remain around SCP-053 for longer than 10 minutes will rapidly become irrational, paranoid, and homicidal. Those attempting to kill SCP-053 will suffer massive heart attacks or seizures.