Repair adhesive does not stick, nor repaired

Originally I had purchased the adhesive to adhere the apostate interior mirror of my car again. All splices were of course thoroughly cleaned, pressed the framework of the rear-view mirror with Apply glue in about 5 min. To the windshield.
Result:
When I wanted to go 30 minutes later with the car, the mirror was no trace. I found him under the front passenger seat back.
The whole procedure, I then repeated 2 more times, but the result always remained the same.

A few weeks ago I noticed that replaced the shoe soles of my shoes- gezeigt- slow as on the packaging image of the adhesive. Inasmuch as the adhesive was designed supposedly for just such cases, I gave the "good" Pattex Repair one more chance. So splices cleaned again, powered sole with adhesive and loaded with dumbbell weights. The whole thing, I then let work overnight.
Result:
When I put the shoes on the following day, first everything looked to be a success. "Well then," I thought to myself, "After all that stuff advertised on the package complies with the repair work!" Followed 2 minutes later the soles were off again. Class Repair Glue!

Since I am a stubborn dog now times, I tried it again recently with the broken handle of a cup.
Result (you guessed it):
Taught by the experience, I filled the cup gently over the sink, on which, surprise, surprise, the Henkel broke for the second time. Would certainly have been a great joy to pour because of this useless product in the morning the hot tea over his pants.

Conclusion:
An adhesive which does not stick, has somehow missed his calling, right? Thus an unusable product which is now disposed of (along with my cup).