Friend's baby puked on my trousers when we were having coffee so I hastily popped into Primark to pick up cheap leggings to wear on way home. Said our goodbyes, walked to Peckham Rye station, encountering funny looks along the way I might add but thought no more of it. Boarded train then a few minutes later, a woman walks through empty carriage to where I'm sitting and sidles up to me. I thought 'oh here we go, she's going to ask for money'... so prepared myself for a sob story. "I spotted you from further up the platform, saw you boarding this carriage", she said. "Thought you should know your leggings are so see-thru that I could make out the pattern on your knickers". Thank you, kind stranger.