Isn’t the little red tin you mention baking powder, which has cream of tartar and cornstarch added. It’s not as strong as baking soda (bread soda) in its pure form and has a different name.

Someone should design that road sign

Trust everyone (trust no-one), edge out, catch their eye while looking in three directions, turn left while aiming right…. nod, wave and ‘go ahead’ ‘no, you go’, you almost curtsey at the end of the dance while believing you probably broke several rules of the road