If I were you, I'd ask H about it. Be prepared for a BIG blow back from H claiming invasion of privacy and all sundry stuff out of his mouth. Stand firm and ask what the receipt was all about. Give him an opportunity to explain.
Calmly state that you were reaching for a piece of paper to write something down and came across this receipt. Then redirect back to H and ask him these items since it was fairly expensive.
Remember to stand firm and maintain a calm composure.
