The Weiss Kreuz 100

Title: It's unlucky to harm a cat.
Characters/Pairings: Schuldig & Farfarello
Challenge: Superstition
Team: Schwarz
Rating: Gee
Word Count: 100
Series: Kniiiiiightu Huntaaaarru~

It's cold on the roof, and Schuldig, laying on his belly and propped up on his elbows, sighs behind his field glasses and fogs them up.
Farfarello laughs at him and sights down the barrel of a pistol at the flowershop window. When Schuldig glances at him, he sees in the irishman's mind, as though reflected in one golden eye, tempting targets moving about. First the small one arranging the display; oh, lucky boy, called back behind the counter. Now the tall lazy one, pushing back his hair and yawning.
"Nein," Schuldig tisks. "Unglück es gibt, eine Katze zu schädigen."

It seems that promises were kept and promises were broken last week.  Weiss kept them and Schwarz broke them - they tied with 10 points each.  

This week's prompt is #21 - Superstition

There are several definitions for the word superstition:

-  "the irrational belief that future events are influenced by specific behaviors, without having a causal relationship."
-  "a belief in the ominous significance of certain symbols or occurences"
-  "a belief in something not justified by reason or evidence"

Does Aya pick up pennies for luck or is he just greedy? Does Ken have lucky mission socks that he never washes?  As for Schuldig, does he baulk at superstition thinking that if you believe in it then it will always follow you? Does Farfarello have a fear of the number thirteen? 

For a little help, there is a list of general superstitions and old wives' tales listed here.

Are the characters superstitious?  Tell us about it, in only 100 words.