Walking out hasn't happened & mostly will never happen to any movie irrespective of the cast.
There are whole lot of films of them which I didn't watch in theaters.
Same goes for purposefully skipping.. still mentioning only for this decade..
For Salman Khan, None this decade.
For Shah Rukh Khan, I purposefully skipped Ra.One, Raees & Jab Harry Met Sejal as the pre-release shenanigans just ruined any enthusiasm to watch Raees & JHMS. Basically saying I lost interest on those two even before release. Ra.One was the negativity.
For Aamir Khan, it was Talaash & Thugs of Hindostan. Talaash mainly because people ruined it sharing spoilers. TOH well it was no go from the very first poster itself.