I have a day job with decent salary but I have to face this situation ever in my life then I would borrow money from colleagues as they are working with me since long time and have blind faith in me that I will not run away with their money and will pay them back on time.
some time it become hard to borrow money therefor i try my best to save so extra money for intense need. for this purpose i have invested my 80% amount in bitcoin while the rest 20 % i usually save for my intense need.