In the UK comics, Ray had a clause in his contract stating he would not bust the ghosts of animals.. But I think this may have just been the work of a lazy artist..
POINTLESS INFORMATION FOR EVERYONES!!!!
Lol, does that include evil mink coats that come alive because of pink slime? Lol, and yeah, that sounds like the work of a lazy artist, but, thats an intresting pointless fact for everyone.