Some wonkiness with Nidalee spears and large size champs

Can't count the number of times I've thrown a spear at Cho, Maoki, or a Nautilus and had the spear go directly inside their body but not connect lol. And I don't mean clip. I mean it's right inside the middle of their body the entire way through and just doesn't hit. It usually prompts laughter in all chat, along with jokes about pink warding that spear.