My lab is a male, 3 yrs old and he is not neutered (sp?). Recently, like in the past 2 days he has been peeing on random things in the house. He has never done this before so I am a little worried that something is wrong. He is acting normal and everything he's just peeing when Im not home. Now when he has to go and he doesnt get outside (like if im gone more than 8 hrs he has peed but its in a squigly line near the door) this peeing is like he's lifting his leg on things to mark territory or something. Any suggestions?