No piercing is considered fully healed until it's a year old. Contrary to what you may read, it takes the body a full year to season a piercing to the point where it can be removed for extended periods of time without the risk of the piercing closing.
HBr is polar. The Lewis structure shows a central carbon atom forming four single covalent bonds with the four terminal bromines. The central carbon has no lone pairs and four bonding pairs, so the molecular geometry is tetrahedral (as is the electron geometry), and bond angles are thus approximately 109.5 degrees.
A quick explanation of the molecular geometry of CH4 including a description of the CH4 bond angles. Looking at the CH4 Lewis structure we can see that there are four Hydrogen (H) atoms attached to the central Carbon (C) and no unbounded pairs of valence electrons.