No. 1 The dog ate it.
No.2 It fell in the sink and got wet, so when it came out the dog ate it.
No.3 I left it on the grass and my neighbour (who is an alpaca) spat on it and the dog ate it.
No.4 I just finished it and a Minotaur as big as Mount Everest with huge black teeth ripped it up, threw it on the floor and the dog ate it.
No. 5 I left it for two minutes while I decorated my cake with pink icing as bright as the moon, then some bright green aliens came and planted a shiny silver plant, took my homework but dropped it and the dog ate it.
No.6 Here is a chocolate pizza instead.