I had a calico for 15 years and I lost her in 2001.
I have to say that in my 25 years as a vet tech, Calicos and Tortis do have their own "special" personality.
I think calicos and torties are a little higher strung than
I don't know if I would go with "crazy", but they tend to have their own quirks.
My Cuddles was a nut case... LOL... she was my velcro cat... loved her dearly... we called her two-faced... the light side & the dark side... so loving & yet could be so nasty... wish she was still here.
Cuddles knew how to get back at ya... later when you didn't expect it... especially to dh... she'd come along & bite his toe!
I have had a couple in the past and they seemed normal.