i needed to do some errands and somehow the valve tip was broken off (?) of my rear tube on my beater and i tried to inflate it anyways and when i took the chuck off the core shot out... after checking the storage for a tube and found none and remembered the cargo bike waiting to go downstairs.
ended up running twice as much errands (lol): pharmacy, grocery store, liquor store, bike shop
gave one of the bike shop guys a ride on the back. he really liked it.