People who tell me I should buy expensive inferior kit with a shorter life so I can shave a few grams, people who tell me I take too much in too big a bag. People who tell me I don't take enough. People who tell me I wouldn't survive with my kit if the world ended. Basically anyone who has a problem with my kit selection!!!
Ego's, overly competitively people, loud people who shout over you, argumentitive people
Music, especially from electronic kit
Bushcrafters who leave rubbish - yes, they are out there - no there's no excuse
People who don't care about seeing wildlife or birds unless they are rare
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For a bit of balance, here's my pet faves
Silence from all noise but nature
That blackbird that won't shutup at 4 in the morning
Landowners who look after their land and don't let a single chemical touch the soil