I was recently traveling alone from Heathrow with 3 children under 4, My eldest needed the loo, so being Heathrow and having no 'family facilities' I struggled into the Disabled Loo (sorry if this is an offence!)
A lovely lady passing by watched my struggle and offered to mind the younger two outside the loo while I sorted No 1 son out... I politly declined - what I am sure was a genuine offer... Can you Imagine it though giving your 2 babies over to a complete stranger in an international Airport... (with their pasports in the buggy!)