Only nerds wear coats in winter...apparently. By Bessie

Conversation between grownuphuman and 2 minihumans:

GUH:    Where's your coat?
MH1:     (shrugs)
MH2:     (shrugs)
GUH:     It's 6 degrees out.  Aren't you cold?
MH1:     Yes
MH2:     (shrugs)
GUH:     Then wear your coat
MH1:     Nobody wears a coat to school
GUH:     I've seen people in coats
MH1:     Only nerds
GUH:     I thought you was a nerd
MH1:     NO!  Who wants to be a nerd?
GUH:     Me
MH1:     (Under breath) I can tell
GUH:     You're quiet.  You've probably caught a cold from not wearing a coat
MH2:     (shrugs)
MH1:     He should wear a coat.  he's a nerd
GUH:     No he's not.  That's so mean.  Oh look see that girl there, she's wearing a coat.  She must be a nerd
MH1:     She is
GUH:     See that girl there, she's wearing a coat.  She must be a nerd
MH1:     That's a teacher
GUH:     See that girl there, she's wearing a coat.  She must be a nerd
MH1:     That's my boyfriends sister
GUH:     I'm telling her you called her a nerd
MH1:     I didn't say everyone who wears a coat is a nerd
GUH:     Yes you did actually
MH1:     (gets out of the car and ignores GUH)
MH2:     (also gets out of the car and ignores his loving mummy)
GUH:     BBBYYYEEE NERDS


To conclude:
Humans are quite stupid. 
Minihumans don't like to wear coats to school but insist on having very expensive coats to wear at all other times.
Minihumans don't like to be called nerds but old humans like it.