why crochet and red wine don't mix

so, it isn't really that much of a surprise, but i would like to put it out there - crochet and red wine don't mix. i discovered this the other night, when i thought after a bit of wine, i would pick up the simple granny rug i am currently making for a friend's baby. 

its a yellow rug, using a variety of yellows to make two toned squares - such as these. 

this is the square i made after red wine. spot the problem? 

it seems changing colours was more that i was able to figure out. still, at least it is still square (just don't count the numbers of trebles too closely)