I just got a thermacell. It works great, but I was wondering if it is actually odorless or not. I have a cold now and can't tell. The mosquitos here are the worst I have ever seen thanks to the summer flooding. Do these things spook deer a lot or not much at all. I can't go bow hunting without it now, so just wondering If I should just wait for a frost and not take the chance of spooking them.