Anything with a strong 'chemical' scent will in fact drive the characters away from it! This may be a way to drive them away from certain areas...

Childe would tell mops it's up to her if she wishes to let someone else use the monocle. Her caveat would be that the thessyx should be informed if they wish to be 'above board' about it. She doesn't like the idea of trying to 'trick' a race of psychics, as it were...