During his stay in Karbala, Imam Khomeini used to regularly visit the holy shrine twice a day before despite the excessive crowds.
He would never miss the pilgrimage due to too much number of pilgrims or his physical condition. It happened sometimes that Imam Khomeini was stuck in the crowd that his companions felt fear for his life so that he would not perish.
(Extracted from a series of memoirs about Imam)