Good Old John

Good old John
You were always there
Nothing too much trouble
Always on hand to advise
To give a helping hand

Good old John
Steady dependable John
Unselfish, good egg John
Smiling humble John
Ever reliable

Good old John
I see you now in hindsight
Waiting in the wings
Holding a watching brief
Biding your time

Good old John
Simple undermining John
Conniving deceitful John
Smiling conspiring John
My wife’s friend John

Good old John
There you were
Pouring poison in her ear
Drip, drip, drip
But she saw through you
Good old John

A Wolf in Sheep's Clothing

It's not uncommon for the apparently dull and disinteresed friend to be plotting a move which will destroy a relationship.