Unlucky, but we seem to have a general problem about scoring goals in the Chapel End at the moment, perhaps we need to move the goalposts!
From memory (I'm willing to be completely wrong if someone locates the facts) Leicester have a very good record in most of the youth competitions, but very few of their academy products make it in the football league, let alone their first team. Sure I remember some Leicester fans moaning about it awhile ago.
More likely they are unnerved by the silence as all the knitting needles stop clacking at the same time.
For the Swansea game there was a lot of noise at the Chapel End, it came from 100 or so Groningen supporters that had made the pilgrimage, so we know who to blame now.