Just had the opportunity to engage with a security guard from SDI Security. I was walking along the sidewalk outside of West Point Plaza at 300 S Damen Ave in Chicago when suddenly my knee gave out. With a friend I managed to get to a cement flower pot to sit on /lean against while wincing in excruciating knee pain. Pain was so bad I could not put any pressure on the knee so we quickly decided that the ER at Rush Medical was the logical next step, so called up an Über and waited for the car. Suddenly a security guard from SDI, working at this Plaza came out of the building yelling at us to get off the flower pot and off the property. We attempted to explain the situation but he did not give a damn and literally screamed at us to go wait on the sidewalk and to get off their property. We told him I was incapable of walking and he still didn’t care and insisted we get off the property immediately. He stated that it/we didn’t look good hanging out like we were on his property and had to get off immediately. We attempted to reason yet again but he wouldn’t give us any time and we could tell he simply didn’t care. The pain in my knee from a scale of 1 – 10 was a 10+. So we told him to call the cops if he wanted us off and he repeatedly stated that he wouldn’t call them but kept telling us to get off the property. So, we called the cops. As he continued to belligerently yell at us we let the police know the situation and gave them the address. Minutes later the Über arrived, unfortunately before the police. So we hopped in and headed over to the ER, where I ended up being at for about 3 hours, with X-rays, pain killers, crutches & a leg immobilizer. It’s looking like surgery is up next. Am unsure if the cops showed up. If this is the type of Security Guard that SDI provides, they should be out of business. This guy was beyond rude and inconsiderate. He turned an unfortunate and painful experience into an unnecessary traumatic one. I do not recommend them.