ok so a while back i bought a tokay gecko.(suspected female).at the pet store i asked the lady why it had 2 balls/sacs behing the ears and she said ooh its normal..some of em have that and some dont so i was like ok w.e. and bought it..took it home and it was the meanest thing ever..loll.so ive had her for aboutt 3-5 months..recently i bought another tokay (suspected male) and he was the nicest thing ever i could handle it wenever i felt like it and do whatever i wished with it with no problems. ive handled it 20's of times...so like 3 days ago he tried to attack me and i pulled my hand out and got my 12in tongs and used the back to touch him and he attacked those..the things i would like to know is 1. was the pet store lady right? do some of them naturally have those balls/sacks behind the ears? and 2. why all of a sudden is he so angry / mad? would appreciate the help...thanks