While on my way to St. Ives,
I met a man with seven wives.
Each wife had seven sacks;
Each sack had seven cats;
Each cat had seven kits.
Kits, cats, sacks, wives;
How many were going to St. Ives?
You can meet someone while both of you are going the same
direction! You, obvouisly by yourself, can be going at a greater
velocity. This is also obvious because the man had to wait for
each wife who had a lot to carry was probably going very slow.