The original and best 100 official irritable owl syndrome design maybe hes got ibs maybe he smashed his iphone 6 maybe hes just a grumpy bird of prey now with less swearing artwork copyright push merchandising ltd get the large nsfw and small nsfw versions toot shirt design reads sod off irritable owl syndromeour crew neck short sleeved mens t shirts are 100 premium cotton in a soft pre shrunk jersey knit our womens t shirts are lighter weight 150g tees made with deluxe 30s s