Pram
From Tardis Wiki, the free Doctor Who reference
Prams were used to carry babies. On 18 August 1951, three month old Sarah Jane Smith was left in her pram by her parents, Barbara and Eddie Smith, who drove off in their car. It was not until 2009 that Sarah Jane, having travelled back to 1951, learnt that her parents left to meet their deaths as they crashed into a tractor, preserving history and saving Earth from the Trickster. (TV: The Temptation of Sarah Jane Smith)