Where I live in Australia if somebody bumps into, drives into or trips on something really obvious they are usually met with the derisive comment "charter boat - what charter boat ?" which refers to an infamous TV ad for RACQ boat insurance. The short ad features a guy in his backyard next to his small boat explaining how RACQ insurance was invaluable when he ran into a (much larger) charter boat. His wife is in the background collecting her laundry from the clothesline and making comments throughout. In the end she can be seen blindly, flailing around the backyard with a towel over head exclaiming "charter boat what charter boat?".
Google it or watch on youtube - it's priceless !