I'm looking to do a shot thursday morning and I'm wondering if it will be ok to go ahead and draw up and fill the syringe now. Will this still be clean if I put the cap back on needle and just leave it in drawer, also is there a chance the plunger could move and push the juice out? Let me know cause i want to get up early tomm. morning and do the shot with out the family all waking up but, pre-loading the syringe for tomm. will really help me out.