I have two sets of funds.
One for buying dip
One for real issues whatever those issues are.
Today I purchased dip.
What if buying the dip turns into a real issue?

Which account are you using then or justify to make use of?
Buying the dip will never be an issue if you program your discrentionary income very well.
I can spare money for parties, and recreational activities in other to buy the dip.
Except your income stops coming perhaps you quit your job, get sacked or stop having client in your business. Only then can buying on dip be limited.
Just as you have said buying at the dip with some viable strategy it is not advisable to make if you have a well planned discretionary income you can take advantage of the market downturn without compromising your stability, and also your points about income continuity is not advisable as long as your income remains steady one can continue to buy at the dip season however if one's income is determined due joblessness, business turn down it advisable for them to reassess your income priorities and quickly make your adjustments income strategy accordingly.