The Most Amazing Thing — Robert Grudin

The Most Amazing Thing, is the extravagant narrative of Desmond Ruck, a midlife down-and-outer who stumbles into a big-crime shootout, escapes in a van filled with billions, and journeys across America in a series of bizarre encounters and close escapes. Safe at last, Ruck embarks on a number of outsized philanthropic ventures. But his largesse and compassion get him into really big trouble.