Try to get them in such a way that you don't seem to be grabbing them. Put your hand in and then keep it flat (allow snakey to spazz out) then slowly move your hand towards it. With the nervous ones they'll usually be moving about trying to get away and I try to push my fingers underneath them when they are moving between objects ( ie from branch to waterbowl) when some part of them is in free space and hold/lift them from there. Also, if they are climbing the glass in a corner all you have to do is put one finger either side of them and they'll eventually fall left or right onto your waiting digits. Sneaky ... it works tho
