Awww poor bunny, i'll bet the noise is quite loud little wonder wabbit is frightened.
We recently had a new front door fitted and Flash (cat) was beside him self with the noise. he sleeps on the landing on his blanket - didn't know where to go, so I opened the spare bedroom door - later I couldn't find him --- noticing the bed door (sliding door) slightly open I got down and peeped inside - to see two cat eyes looking back at me

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It's good you are looking out for your rabbit Pete
