Punctured today on Schwalbe Marathon Tryker tyres. Right front wheel went flat on me 6km from home.
Culprit hard bit of white plastic that was in the form of a spike

Wish I had pliers on me as I spent about 2 mins trying to get it out of the tyre, plastic = slippery. Did think about walking to the bike shop 200m away for help but I sorted myself out.
So 1 puncture over 2475km