Knots are an inevitable part of knitting.  Sometimes knots just happen.  I accept it and don't grumble about it much.

Last night, as I was knitting away on Haruni, I found a knot in the yarn.  I was almost to the end of a row, and I didn't have enough yarn to work to the end of the row without the knot finding its way into the shawl.  I unknit a few lace repeats to give myself room to cut out the knot and rejoin the yarn.  As I'm about to cut out the offending knot, I look down and find another knot inches away from the first one. 

They're not even full knots but knots between plies of the yarn.  I had to unknit some more so I could avoid the second knot.  So frustrating.