Vanishing Sock Pattern
Name: One of a pair of socks vanishes
Problem: If a pair of matching socks are washed, one will vanish.
Context: Usually occurs after placing socks in washing machine or dryer. If two pairs of socks are washed, 2 socks will vanish in such a way that you will have two half-pairs, or two socks that do not match.
Forces: Unknown forces cause mismatched socks. Two matching socks vanishing is never observed because it is not noticeable.
Solution: Purchase all identical socks of the exact same brand, color, and part number.
Resulting Context: Someone will give you socks of a different color. Problem repeats.
Rationale: The design is based on a vanishing cloth occurance.