mine did this today however mine have recently shed - me and my little girl freaked out and rang my partner - i thought he was gunna explode lmao... my boy hasnt been eating much veg so yesterday, neither have i seen him drink any fluids so the last 2 days i have dripped water in front of him (i read that sometimes they wont drink from pools as its not natural to them but they will often go to dripping water) - some got on his face and then he did this eek... i figure they do it when somethings irritating their eyes inc their tight skin when shedding!
I didnt freak too much, found it more humorous cos i saw the water go on his eyes and have seen some very odd displays since getting them a wk ago!!!
Theyre so fascinating!