to quoate Roz's message.

"If a wheelchair user tries to get on subsequently, I will decide whether we can realistically get off and walk the rest of the way. That will depend on the distance and whether I think my toddler is up to it. If not, then we are staying put. Folding up a double buggy with three young children is not possible at all. I expect therefore that my children get priority status in that context. Its tough on the subsequent wheelchair user but other than not attempt to use public transport at all, theres no other solution. And I'm not prepared to stop doing it, despite the uproar and outraged facial expressions that might ensue."