Anyone come across this phenomena.? We moved a rimu chest in our lounge in prep for new carpet laying and noticed a large brown stain on the existing carpet where the chest was. To be honest we haven't moved the chest in at least 4 years and the carpet has rubber underlay (that wavy sort) and then concrete.

I read online that overseas furniture stains do occur on carpet but I have never seen it here.

Anyone else have this?