On being a greedy little toad

Well, we've finally had to give in and have a go at a formula feed at night. We decided to give it a go because it seemed that his regular feeds weren't keeping him full for long enough, hence the middle-of-the-night waking. So we've started doing a formula feed last thing (one of the thicker formulas, so it'll stay in there longer) and it seems to be making him a bit happier. He doesn't like the taste when he first gets it, but being a greedy little toad it doesn't actually stop him from taking all of it! He's so keen he's even started holding the bottle on his own, to make sure no-one takes it off him...