My first adventure with stocks involved Merrill Lynch.
Just at the time I was closing up a beach house in Hawaii---prompted by feet itchy for exotic travel---A trust fund became accessible to me. Tho reluctant to part with the dividend income I had enjoyed for years, I was in a risk-taking mood. I flew to San Francisco, liquidated the blue chip AT & T and, under the watchful eye of my personal broker, dove headlong into the deep end of the options/futures market.
Since I was enroute to Central America, I was advised to call my broker on designated dates to discuss options as they arose. While traveling thru Mexico, it was simple enough to manage the check-ins, for ML had offices in many major cities, where if needed, I could draw cash for travel expenses & see how 'things' were going! (My broker was frankly smitten with me & my unorthodox lifestyle. He gave my account more personal attention than one might normally receive.)
I dabbled in this system for a couple of years & rolled over most of the 'winnings' back into more 'options'. Finally I wearied of the system/risk, & cashed out. I did this just after having made---what was for me---a killing in 'International Flavors & Fragrances'. I used my funds to invest in a healthy, authentic lifestyle that suited me, relying heavily on my nearly endless stores of energy & imagination.
Since then, on an annual income which probably falls somewhere near the poverty line, I lived mortgage/debt free, had 'work' I loved connected to part time travel SOB, & have mastered a multitude of simple living skills in preparation for likelyhood of societal collapse.
No matter what one's system/approach, all are vulnerable.
Live life!
Charlotte