I'm still strugling on with trying to litter train my two lionhead rabbits aged 7months old. They have been litter trained once when they were about 1 month old and did really well then I started to let them run in the garden and didn't put their litter tray out. since then they'll go right next to the litter tray. I've tried everything I can think of to get them back to using it but it's no use...any help?>??????