I’ve never seen anyone put their hand over their heart at a funeral. I’ve seen people make the sign of the cross. Granted, I haven’t been to many funerals,
He’s also the Patron Saint of Russia. His remains are held in custody by the Roman Church, which did loan them to the Russian Church some years ago, and when they arrived at the airport in Moscow they were received by the Russia Patriarch, an honor guard and as well as Putin.
My understanding is that methane is odorless.