greetings from middle america. any ideas on how to get berry bird poop stains out of some of my unfinished wood? i set it out side for five minutes and when i went to get it the wood was well coated. damn those birds. i've tried sanding, it's alot of work, and you can still see the berry blotches. also, i've got the basic "dust mask" do i need to get a respirator? brain cancer just dosen't sound like all that much fun. thanks. brett