You could go for the sympathy one. I have used it more than once
'I have had an email of somone asking me if I could take their giant in, I know we haven't got space at the moment but I hate to think of it getting into the wrong hands' then leave it a day and say 'I have had another email they are pretty desperate now, I think I will have to tell them that we will help them but I will rehome it I promise (with fingers crossed)' It works for me:lol::lol: