Some reasons for being late that begin with the letter R include:
-Road block
-Raced to your job, then forgot your lunch
-Rolled down a hill, got grass stains.
-Read signs wrong
-Red sauce on shirt
-Ran a marathon
-Rat got out of it's cage. (pet rat)
-Radiator overheated
-Railroad crossing had a really long train on it, and you had to wait for it
-Ran out of gas
-Rush hour
-Resting
-Relaxing
-Rear ended in an auto accident.
-Roadworks
-Reorganizing
-Reading a book
-Riding a horse
-Robbed
-Roads wet
-Road accident
-Really busy
-Running laps
-Rolling coins
-reading a really good book that I couldn't put down
-rushed, but just not fast enough
-relatives visiting
-roast in the oven, had to wait 'til it was done
-raging mobs were chasing me
-rabbits bit me leg
-raking leaves for random strangers
-reaching a goal
-running late
-retching
-retrieving escaped dog
-revolving door wouldn't let me out
-Ran into a wall hurting myself
-ran over by a bus
a wedding ceremony, doctor's appointment
Engine trouble and empty fuel tank are good car reasons for being late. You could say that you had eye problem, an earache or an emergency.
So much sarcasm comes to mind, so I should keep my mouth shut.
Amnesia
Being lost is a common reason for being late. You could be late because you locked your keys in the car.
Around about afternoon, an alien apparition appeared. After an abduction aboard aircraft, and appraising in astonishing awe, I completely lost track of time.
Illness, indigestion, injury, incarceration and interviewing for a job are reasons for being late. They begin with the letter i.
Keys misplaced, knee injury and kids were not ready are reasons for being late.
Intoxicated.
Dog ate my summons.
Tardiness
pooping