Zebra crossing on blind corner

So this morning was making my way around a roundabout indicate to come off check my mirror and what felt like seconds after checking my mirror I have a pedestrian sprinting across a zebra I’ve had to emergency break as by the time I’ve come off the roundabout he was just there barely had chance to see him. Feel terrible for it as I usually try to be a responsible driver but it definitely feels like this should be placed further back from the junction. Apart from him throwing profanity at me and me apologising no harm on either side. Just wanted to get it off my chest and wonder if anyone has experienced similar?