There's a rat in my greenhouse.....

... what am I going to do? is a song I am currently singing. Of course the original song is 'There's a rat in mi kitchen' by UB40 (1986) but at this moment it is the one in the greenhouse I am singing/thinking about.

I think it is a rat anyway, it could be a squirrel. What is definite is that there is something getting into the greenhouse and digging in the plant pots, killing whatever was growing in them. It is not cats, ...