Funny your sig is ""FOR ME TO POOP ON"
Rooibos was huge in South Africa for quite a few years. Had a friend who loved the stuff but it always tasted a bit gamey to me. Anyway to cut a long story short in the early or mid-eighties, large quantities of 'Rooibos' tea was found to contain rat and bird droppings.
The main manufacturer never quite recovered. Funnily enough my friend who was basically addicted to the stuff did not like the new and improved Rooibos....without the extra additives.