My Max has suddenly started behaving rather strangely. He has always been a brave and inquisitive cat, not phased by any kind of change or break from routine and he has been perfectly fine with the kitchen fitters and painters we have had in this week, but when we had the removal men come to take away the old kitchen he took one look at them and shot down to the cellar and i found him hiding under a chair. Eventually i managed to persuade him out of the cellar and he went upstairs to sleep on my bed as usual. I can't think what has caused this sudden drastic change in behaviour, any suggestions?