Worst ideas/features in programming lang

[Ola Fosheim Grøstad]

FWIW, from Stefik and Sibert, «An Empirical Investigation into 
Programming Language syntax», _ACM Transactions on Computing 
Education_, vol. 13, No. 2, 2013:

Both programmers and non-programmers had their preference for 
*boolean and* ordered as: x and y, x&y, x&&y. With a dip in 
interest for the && version. Which isn't surprising.

For *boolean or* there was more deviance. Non-programmers 
preferred: x or y, either x or y, x and y (!). Non-programmers 
seemed to have problem grasping the concept of logical or. 
Programmers preferred: x or y, either x or y, x||y.

For *string concatenation* programmers had a preference for: +, 
&, _ and a dislike for: -, ?, $

(The authors list many other constructs.)