This is my advice. If you really ant to have a good close relationship with these two co-workers you need to be honest with them. That's what good friends are for. If you need a walking stick find the wildest color one you can find, have fun with it. As far as the bathroom issue, if you have to find one frequently then you do. If they are the kind of friends you are saying they will understand and just laugh with you.

When our grand kids got to the age we wanted to start going places with them I had two choices. 1... have boring times here at home. 2...rent a scooter and have fun. My grand kids, daughters and SILs all know that where I go a scooter goes to. To think of the fun times I would have been missing out over the years if I hadn't rented one. Stand up to MS and win!!!!