totally disgusting, so you make a little noise, so what the idea of vandalising your heli is not on.
I agree with lelebebbel i would check the fluids and hoses as well, I would also give the seats a check to see if they have been urinated on.
Also what are the local police saying, have they taken any forensics to see if there is any fingerprints or blood?
I'm feel sad for you, I hope things get better.
Fats