The kind in the green and white box, where you stand the swab in the liquid for a minute then only wait 15 for a result. Does anyone else have problems getting the drops of liquid out of the tube? So far I've wasted 2 out of the 4 I've tried to do because the drops won't come out, I end up squeezing the tube so hard the top flies off. It's happened 3 times total but the third the liquid landed on the test anyway so I gave up and am using that attempt despite it probably being more than the 4 drops I am supposed to use 🤷♀️ Is there some knack to it I am missing?