Pep was angered by the Portuguese's actions against Barca's assistant coach following the ill-tempered Supercopa clash
The Catalan club secured their third consecutive Supercopa success thanks to a 3-2 win - and a 5-4 aggregate victory - after a feisty affair against Madrid.
A late red card to Marcelo, following a cynical foul on Barcelona's new signing Cesc Fabregas, resulted in a touchline brawl between the coaching staff of both clubs. During the ruckus Jose Mourinho appeared to poke Guardiola's assistant, Tito Vilanova, in the eye before blowing him a kiss from a distance.
On the altercation between the two men, Guardiola said: "The images speak for themselves. There are things that should not happen in football [and this is one]."
"This could end badly if unchecked. I can do something with my players, and make sure that they behave their best, but I do not give lessons to anyone [else]."
Responding to Mourinho's claim that he did not know who he was 'poking', Guardiola commented: "He has to know who he is. I know who Karanka [Mourinho's assistant, Aitor] is. Tito is very important to our team."
In the game itself, a late Lionel Messi goal ensured that the Blaugrana defeated their old adversary for the first time in the competition's history to win a 10th Supercopa crown.