If I had not known about Skinner's lifework, and used some of the principles in my research and personal life, I would not give a second thought to Watson's behaviourism.
I couldn't stomach either side of the debate between Watson and McDougall; both harbouring extreme idealogies about the field of psychology. Watson was more professional in getting his point across whereas McDougall became very personal in his argument.
"If the fear element were dropped out of any religion, that religion would not survive a year" says Watson
I know there has been great advancements in the field of behaviourism so I swallowed this argument with a grain of salt.
Please do not read this if you are new to Psychology or a recent traveller to the waters of the behaviourism.