I'm not sure even that would clue a couple of them! ;P

At work, I mostly drink coffee (even though we have one of those dreadful machines with the pods). I'm trying to switch to rooibos tea. I've also challenged the office tea drinker as they all say they can tell the difference between Tea Bag->Mug->Hot Water->Milk Tea Bag->Mug->Milk->Hot Water Mug->Hot Water->Tea Bag->Milk However, none have taken up the challenge :-D

Invasion Of The Body Snatchers (both the 50s and the 70s versions) Might be more horror than SF. Silent Running Maybe someone's already suggested them (i'm catching up with the thread)