man with the rubber hose in his nose

This book is about the adventures of a grandfather and his grandson even though the grandfather is on oxygen. The grandfather has had an exciting life and creates fun play times with his grandson. They pretend to be sheriffs, wrestlers and sailors. The grandson stays at the grandfather's house during the Coronavirus and they continue to share pretend adventures even as the grandfather works in his rose garden. The grandson doesn't seem to notice the oxygen hose during their adventures.