My father flew with budget carrier Tiger Airways from Canberra to Melbourne yesterday, and had the exciting experience of having part of his window fall out. Fortunately, it was the rim of the inner casing of the window, rather than the outside part. As he puts it:
The inner plastic moulding that clips around the window just dropped down to the floor. I tried to push it back into place, and noticed that it had previously been sticky taped into place by tiger mechanics. Staff were quite nonchalant, just picked it up and put it in with the cabin baggage. Guess that their new A320’s must have had a few bumpy landings that shook things loose.