Next thing is they will tell you the train wasn't early and can't be early. I know the signalling computer doesn't care about time, it worries about order, in the case of the Maynooth line it is possible to depart early, where as from Howth or Bray would require a manual override since there is a level crossing. So that pre-empts the next excuse from IE
The case is still weak but IE are starting to dig a hole