After being handed an envelope by a stranger on the street, a British woman was stunned by its contents. Inside the envelope were a handwritten card and some money, requesting her to buy a cake in memory of the writer’s late son’s birthday. Tammi Bennett, 19, had just picked up her cousin from school on Jan. 26 when a woman she had never met before approached her on the street. Bennett, a sales advisor from Barry in Wales, UK, was at first confused. “I honestly didn’t know what to think,” she told The Epoch Times. “She sprayed [the envelope] with antibacterial spray and just handed it to me, told me to have a good day, and left.” Opening the handwritten card, Bennett was moved to read the woman’s message. “To You,” read the card. “Today would have been my son’s 28th birthday. Sadly he was lost to SUDEP (sudden unexpected death …