At the Saharan hotel, when Lucy adjusts Maurice's back her round
suitcase displays a 'love yourself' label reading right-side-up. In the
next shot the label is missing. And then, when Lucy goes to pour another
drink, the label is shown again reading upside-down.
Steve is worried that his son might inherit the gene for dwarfism and become a dwarf himself. For the overwhelmingly most common form of dwarfism (known as "achondroplasia"), it is only possible to inherit the gene if either parent is a dwarf, which is obviously not the case. For the less common forms of heritable dwarfism, it is only possible to have a dwarf child if BOTH parents' families have a history of dwarfism, and the film does not show Carol's family to have such a history. In fact, Steve being the only average-sized individual from a family of dwarfs makes it overwhelmingly likely that he did NOT inherit any genes for dwarfism and therefore has a next-to-nothing chance of having a dwarf child.