The Soviet's attitude towards their citizens, wasn't exactly one of care! The soldiers may even have been from a Shtrafbattalion, (penal battalion), so "Run past that tank, or I'll shoot you". The name is related to the date, all the surviving vehicles were remanufactured prior to May '44. So on 30th April, they're all Ferdinands, from 1st May onwards, they're all Elefants.