A new... smell? Like a perfume or something?

[Tilting his head this way and that. And then--]

Huh?! No, of course not! I, uh... just got this stuff from the canteen, so if anyone's putting things anywhere, it's definitely not me! ...And even if I did do something like that, I definitely, definitely wouldn't do it to you! So...

[He nods, too-small wings fluttering for emphasis.]