This incident reminds me of a Zen story:
"A young monk went to a private instructional talk with his Zen teacher. The teacher and monk sat, on the floor, directly across from each other. After they sat in silence for several minutes, the monk asked “What do you see?” The teacher replied: “I see a buddha.” Silence again for several minutes, then the teacher asked: “What do you see?” The monk gave a quick response: “ I see a useless bag of bones.” The teacher said nothing, but placed his palms together and made a deep bow to the monk. The period was over and the monk left.
The monk was exultant. He had bested his teacher in a one-to-one exchange. He could not contain his excitement. Later, in the day, while working in the kitchen with a senior monk, he retold the story of the exchange in a triumphant tone. It was a sign of his progress on the path.
The senior monk simply smiled: “No, it was the teacher who has taken you. When he spoke, he showed what was in his mind, and when you replied, you revealed what was in yours!” The young monk had no further response."
Personally, I think that what Ken wrote on the shirt was a reflection of what is in him, and not much about you. Whether you decide to take it a reflection of hate towards you and how you respond to Old 97's music is a reflection of what's in you. Just an opinion, not a judgement in any way.