1.) Very long method

+

2.) Non descriptive variable names

+ 

3.) Variables are reused for different things throughout the method

+ 

4.) Lots of if/then exception cases

+

5.) Deeply nested Arrowhead code

+

6.) All data stored in Hashtable's -- and it's this data that's getting bamboozled somewhere

+

7.) Numbers that come out wrong

=

An unpleasant Friday afternoon. 

I worked with a developer one time who took an inordinate amount of pride in his debugging prowess and ability to make bad code function.  I could have really admired his ability if I hadn't been so busy cursing him for the code I inherited from him.  I think I'm getting more tolerant of other people as I get older, but less tolerant of bad code and code friction.

The next time I do greenfield development I promise to appreciate it.