He thinks I don't notice, but I do. I saw him get a little can of stuff and pour it in a glass for Mummy while Granny was out of the way. Mummy gets fatigue and has convinced Baba that energy drinks are good for her. Granny doesn't think so, big time!
If Baba is caught smuggling them to my Mummy then he's in for a serious ear-bashing (or that's what he told Mummy). He can be a bit raspberryiferous, but I don't want him to get his ears bashed. I prefer to do that myself when I yell!