Having married into a Wurzle family, I can say with some authority that a fair few of them are fine, however, I think the biggest issue most of them suffer from (this goes for many family members and friends on this side of the divide) is that due to the fact they are the biggest team in their city (sorry Rovers but it's true) they do suffer from a lack of humility.
They tend to forget that apart from the odd Welsh Cup and LDV/Sherpa Van/Johnstone's Paintpot Trophy, they've achieved the sum total of bugger all in their entire history!
This does tend to mean that reality can become a little distorted with them...
Well, it's either that or the scrumpy has genuinely rotted their brain cells (may actually explain why my missus thought marrying me was a good idea actually! )