We can also ascertain the very same thing by lynching EURO instead. Wolf EURO deliberately saving one villager over another is very much possible; so when EURO is the one displaying suspicious behaviour, we lynch EURO.
EDIT: I should stop skimming over posts. Hold on.
EDIT2: Nope, I see where you come from, but I don't trust you and EURO saving you instead of Wagon there is still a major possibility. So I'm keeping my vote on EURO.
How do you think my playstyle differs between roles? Do you think I'm quiet when I'm a villager? Because that is what your case implies.
I am not quiet. No matter my role. I may not get everything right, but I trust myself over anybody else, and therefore want to see my suspicions turned into lynches.
If you equate activity with wolfishness, you've got a big surprise coming.