Giving God the out

Pray big prayers.
Pray bold prayers.
Pray for miracles.
Pray for healing.
Pray for God to restore.
Pray for growth.
Pray for dramatic movements of God.

Unless... 

God has something else in mind...
God has another plan...
God wants us to learn something...
God's ways and thoughts are higher than ours...

It's not uncommon, when praying - especially aloud for someone else - to give God the "out".

It's not unusual to leave the door publicly open for God to do something different, or even the exact opposite, for what we are praying for. 

My question is why...

Are we afraid of personally loosing face if God doesn't deliver? 
Are we afraid of showing that God is somehow being "unfaithful"? 
Are we afraid that others might think that God is uncaring, absent or ignoring our petitions?

I think these are important questions to ponder when we want to publicly give God the "out." 

Do we, in light of God's sovereignty, pray in the wrong order.

Should we put the "disclaimer" that God might not work in the ways we desire BEFORE we ask? 
Would this make a difference to the way we pray and the way our prayers are interpreted by others?