<human>: Can you summarize the given text in a few sentences?

So ealier today when my dad and I were walking around in adidas, I offered to buy him a pair of shoes since it's his birthday. I left him alone to pick out a pair he wants as I went some socks. When I came back, I saw my dads figure from behind. He was trying out the brightest, most flashiest pair of pink running shoes I have ever seen. This pair of shoe shined brighter than a flamingo that is genetically modified to glow pink. Knowing that my dad likes to dress conservatively by trying to avoid flashy clothing, I figured he wanted to joke around with me by making me think that those were the shoes he wanted. So I decided to play along, by using my loudest voice saying: "I know you want to feel young again, but those look absolutely hideous on you". As soon as he turned around, I knew that I fucked up big time. The man was not my dad, but was a complete stranger, rocking a ragged beard and staring at me with puppy eyes, full of sadness. I felt the whole store staring at me with punishing eyes as the color drained out of my face. Needless to say, I dashed out of the store faster than a constipated bear on speed. When I looked back, I saw a single teardrop rolling down the cheek of the poor man I just publicly humiliated.
<bot>: saw my dad try on a pair of flamingos, told my dad they were hideous. The man was not my dad.