I was not shocked though.
The handsome old man was in a combative mood yesterday.
He must had felt that the options were running out as the doors were all being closed for him to see DS Najib Razak stepping down from his PM post before the next general election.
Watch his speech in Pasir Gudang yesterday and you may understand why Dr Mahathir swallowed back his own words about Bersih by being at Dataran Merdeka last night.
But still, I don't think it will change anything.
Najib will still be our PM at least until the next general election.
He will not step down no matter what his detractors do or say and Umno in general will support him.
Dr Mahathir should just rest at home, stay healthy, and wait for the next general election.
If it's fated for Umno and its BN allies to lose under Najib's watch, then he and others who love the Malay party will simply have to accept it.
Well, if Dr Mahathir still feels the need to do something, he should just blog about it instead of running here and there like yesterday.
He also needs to be mindful of the health of Tun Dr Siti Hasmah Ali who was with him the whole of yesterday.
It must be so tiring for the two of them, being 90 years old, to rush here and there from KL to JB and back and then went for that walk amidst the Bersih crowd and all.
And if you all may noticed, the security details of the couple during the walk was bare minimum.
People may just harm them.
Dr Mahathir is after all still not the most popular person among the mostly pro-opposition Bersih crowd.