I feel very restricted with places I can safely take DS but I often think it be fun to go to completely inappropriate places with a bunch of SN children with a range of socially unusual or unacceptable habits, just to be really annoying. Like...
Evensong at St Paul's Cathedral
The House of Commons gallery (obviously when they are not dossing all holidays
Glyndebourne
Dinner at The Ivy
Maybe the audience of 'Top Gear' would be good too