Backwards dust bath?

[sarahlydear]

So I usually give my boys a dust bath every night when they go back home, they don't itch nor does their skin seem to dry out; unless they don't get a dust bath. About a 2weeks ago I was unable to give them a dust bath, the next day they itched like crazy all day and would hardly play until I gave them a bath, then they were fine. It happened twice this past week (I was at a late night confrence) and the same thing has happened. Are they just playing me or is there lagit something going on?

[Debbie.nl.ca]

They get used to their routine and when you change it they will let you know they are well aware 
A few seconds every night will not hurt, I use the bath to get some back in their cage. Mine never spend more than a couple of minutes in the bath, though they may go in and out several times.