what are the most common bugs in your D apps?

[Walter Bright]

bearophile wrote:
> There are several other bugs I have had in D. The good thing is that,
> I am used to use lot of unit testing, so I can catch many of them.
> Around I see lot of D code with too few unittests (for example most
> of the code in Phobos has just few unittests. That's bad).

Sure, but if you've got more unittests for phobos, email them to me!